Abu Dhar (ra) used to say that Allah's Messenger (ﷺ) said, "While I was at Makkah, the roof of my house was opened and Jibril descended, opened my chest, and washed it with Zamzam water. Then he brought a golden tray full of wisdom and faith, and having poured its contents into my chest, he closed it. Then he took my hand and ascended with me to the heaven. When Jibril reached the nearest heaven, he said to the gatekeeper of the heaven, 'Open (the gate).' The gatekeeper asked, 'who is it?' Jibril answered, 'Jibril'. He asked, 'Is there anyone with you?' Jibril replied, 'Muhammad (ﷺ) is with me.' He asked, 'Has he been called?', Jibril said, 'Yes'. So, the gate was opened and we went over the nearest heaven, and there we saw a man sitting with Aswida (a large number of people) of his right and Aswida on his left. When he looked towards his right, he laughed and when he looked towards his left he wept. He said (to me), 'Welcome, O pious Prophet and pious son'. I said, 'Who is this man O Jibril?' Jibril replied, 'He is Adam, and the people on his right and left are the souls of his offspring. Those on the right are the people of Paradise, and those on the left are the people of the (Hell) Fire. So, when he looks to the right, he laughs, and when he looks to the left he weeps.' Then Jibril ascended with me till he reached the second heaven and said to the gatekeeper, 'Open (the gate).' The gatekeeper said to him the same as the gatekeeper of the first heaven has said, and he opened the gate."
Anas added: Abu Dhar mentioned that Prophet (ﷺ) met Idris, Musa (Moses), 'Isa (Jesus) and Ibrahim (Abraham) over the heavens, but he did not specify their places (i.e., on which heavens each of them was), but he mentioned that he (the Prophet (ﷺ)) had met Adam on the nearest heaven, and Ibrahim on the sixth. Anas said, "When Jibril and the Prophet (ﷺ) passed by Idris, the latter said, 'Welcome, O pious Prophet and pious brother!' the Prophet (ﷺ) asked, 'Who is he?' Jibril said, 'He is Idris.' " The Prophet (ﷺ) added, "Then I passed by Musa who said, 'Welcome, O pious Prophet and pious brother!' I said, 'Who is he?' Jibril said, 'He is Musa.' Then I passed by 'Isa who said, 'Welcome, O pious Prophet and pious brother!' I said, 'Who is he?' He replied, 'He is 'Isa.' Then I passed by the Prophet (ﷺ) Ibrahim who said, 'Welcome, O pious Prophet and pious son!' I said, 'Who is he?' Jibril replied, 'He is Ibrahim'."
Narrated Ibn 'Abbas and Abu Haiyya Al-Ansari: The Prophet (ﷺ) said, "Then Jibril ascended with me to a place where I heard the creaking of pens." Ibn Hazm and Anas bin Malik state the Prophet (ﷺ) said, "Allah enjoined fifty Salat (prayers) on me. When I returned with this order of Allah, I passed by Musa who asked me, 'What has Allah enjoined on your followers?' I replied, 'He has enjoined fifty Salat (prayers) on them.' On the Musa said to me, 'Go back to your Lord (and appeal for reduction), for your followers will not be able to bear it.' So, I returned to my Lord and asked for some reduction, and He reduced it to half. When I passed by Musa again and informed him about it, he once more said to me, 'Go back to your Lord, for your followers will not be able to bear it.' So, I returned to my Lord similarly as before, and half of it was reduced. I again passed by Musa and he said to me, 'Go back to your Lord, for your followers will not be able to bear it.' I again returned to my Lord and He said, 'These are five (Salat-prayers) and they are all (equal to) fifty (in reward), for My Word does not change.' I returned to Musa, he again told me to return to my Lord (for further reduction) but I said to him 'I feel shy of asking my Lord now.' Then Jibril took me till we reached Sidrat-ul-Muntaha (i.e., lote tree of utmost boundary) which was shrouded in colors indescribable. Then I was admitted into Paradise where I found small tents (made) of pearls and its earth was musk (a kind of perfume)."
Sahih al-Bukhari Book 60, Hadith 17
Yahya related to me from Malik from Ibn Shihab from Qabisa ibn
Dhu'ayb that a man asked Uthman ibn Affan whether one could have
intercourse with two sisters who one owned. Uthman said, "One ayat
makes them halal, and one ayat makes them haram. As for me, I wouldn't
like to do it." The man left him and met one of the companions of the
Messenger of Allah, may Allah bless him and grant him peace, and asked
him about it, and he said, "Had I any authority and I found someone
who had done it, I would punish him as an example."
Ibn
Shihab added, "I think that it was Ali ibn Abi Talib. "
Muwatta Malik Book 28, Hadith 36
The Prophet (ﷺ) said, "Whoever believes in Allah and His Apostle offers prayers perfectly and fasts (the
month of) Ramadan then it is incumbent upon Allah to admit him into Paradise, whether he emigrates
for Allah's cause or stays in the land where he was born." They (the companions of the Prophet) said,
"O Allah's Messenger (ﷺ)! Should we not inform the people of that?" He said, "There are one-hundred
degrees in Paradise which Allah has prepared for those who carry on Jihad in His Cause. The distance
between every two degrees is like the distance between the sky and the Earth, so if you ask Allah for
anything, ask Him for the Firdaus, for it is the last part of Paradise and the highest part of Paradise,
and at its top there is the Throne of Beneficent, and from it gush forth the rivers of Paradise."
Sahih al-Bukhari Book 97, Hadith 51