"My father narrated to me that a paternal uncle of his, who had been at Badr, said: 'I was sitting with the Messenger of Allah (ﷺ) in the masjid when a man came in and prayed two rak'ahs, then he came and greeted the Prophet (ﷺ) with salam. The Prophet (ﷺ) had been watching him as he prayed, so he returned his salam, then he said: "Go back and pray, for you have not prayed." So he went back and prayed, then he came back and greeted the Prophet (ﷺ) with salam. He returned the salam, then he said: "Go back and pray, for you have not prayed." The third or fourth time this happened, then the man said: "By the One Who revealed the Book to you, I have done my best and have tried hard; show me and teach me." He said: 'When you want to pray, perform wudu and do it well, then turn to face the Qiblah and say the takbir. Then recite the Quran, then bow until you are at ease in bowing. Then stand up until you are standing straight, then prostrate until you are at ease prostrating, then sit up until you are at ease sitting, then prostrate until you are at ease prostrating, then get up. If you complete the prayer in this manner you wil hve done it properly, and whatever you do less than this is lacking from you prayer.'"
Sunan an-Nasa'i Book 13, Hadith 136
I would remain with Allah's Messenger (ﷺ) the whole day long. He came to the mosque, and asked about Allah's Apostle (ﷺ). They (his Companions) said: He has gone in this direction. He (Abu Musa Ash'ari) said: I followed his steps asking about him until I came to Bi'r Aris (it is a well in the suburb of Medina). I sat by its wooden door until Allah's Messenger (ﷺ) had relieved himself and then performed ablution. I went to him and he was sitting with his shanks uncovered hp to the knees and his legs dangl- ing in that well. I offered him salutations. I then came back and sat at the door as if I had been a chamberlain at the door of Allah's Messenger (ﷺ) that day. There came Abu Bakr and knocked the door and I said: Who is it? He said: This is Abu Bakr. I said: Wait, please. I went and said: Allah's Messenger, here is Abu Bakr seeking permission. Thereupon he said: Admit him and give him glad tidings of Paradise. I came and I said to Abu Bakr to get in (and also told him) that Allah's Messenger (ﷺ) was giving him the glad tidings of Paradise. Abu Bakr got in and sat on the right side of Allah's Messenger (ﷺ) and dangled his feet in the well as Allah's Messenger (ﷺ) had done, and he uncovered his shanks. I then returned and sat there and I had left my brother as he had been performing ablution and he was to meet me and I said: If Allah would intend goodness for such and such he would intend goodness for his brother and He would bring him. I was thinking this that a person stirred the door. I said: Who is it. He said: This is Umar b., Khattab. I said: Wait. Then I came to Allah's Messenger (ﷺ), greeted him and said: Here is 'Umar seeking your. permission to get in. Thereupon he said: Let him come in and give him glad tid- ings of Paradise. I came to Umar and said: There is permission for you and glad tidings for you from Allah's Messenger (ﷺ) for Paradise. He got in and sat on the left side of Allah's Messenger (ﷺ) with his feet dangling in the well. I then returned and sat and said: If Allah would intend goodness for such and such (that is for his brother), He would bring him. And I was contemplat- ing over it that a man stirred the door and I said: Who is it? He said: This is Uthman b. Affan. I said: Wait, please. I then came to Allah's Messenger (ﷺ) and informed him. and he said: Admit him and give him glad tidings (and inform) him of the turmoil which he shall have to face. I came and said: Get in, Allah's Messenger (ﷺ) gives you the glad tidings of Paradise along with the trial which you shall have to face. He got in and saw the elevated plan round the well fully occupied. He sat on the other side. Sharik said that Sa'id b. al-Musayyib reported: I drew a conclusion from it that their groves would be (in this very state, the graves of Hadrat Abu Bakr, 'Umar Faruq by the tide of the Prophet and the grave of Hadrat 'Uthman away from their graves).
Sahih Muslim Book 44, Hadith 44
Ibn Shihab said: “Salim read to me a letter that the Messenger of Allah had written concerning Sadaqat, before Allah caused him to pass away, in which it was said: 'For five camels one sheep; for ten, two sheep; for twenty, four sheep. For twenty five, a Bint Makhad(a one year old she-camel), up to thirty-five; if there is no Bint Makhad, then a Bin Labun ( a two-year-old male camel). If there are more than thirty-five even one, then a Bint Labun ( a two-year-old she-camel) must be given up to forty-five. If there are more than forty-five, even one, then a Hiqqah (a three-year-old she-camel), up to sixty camels. If there are more than sixty, even one more, then a Jadha'ah ( a four-year-old she-camel) must be given, up to seventy-five. If there are more than seventy-five, even one more, then two Bint Labun must be given, upto ninety. If there are more than ninety, even one more, then two Hiqqah must be given, up to one hundred and twenty. If there are many camels, then for each fifty, one Hiqqah must be given and for each forty a Bint Labun' ”
Sunan Ibn Majah Book 8, Hadith 16