"O people, you have invented kinds of transactions, I do not know what they are, but make sure it is gold for gold, of the same weight, or silver for silver, of the same weight. There is nothing wrong with selling silver for gold, hand to hand, giving more silver than gold, but no credit is allowed. When you sell wheat for wheat and barley for barley, it should be measure for measure, but there is nothing wrong with selling barley for wheat, hand to hand, giving more barley than wheat, but no credit is allowed. And when you sell dates for dates, it should be measure for measure" And he mentioned salt, "measure for measure, and whoever gives more or asks for more has engaged in Riba.
Sunan an-Nasa'i Book 44, Hadith 115
On the day of Hunayn we travelled with the Messenger of Allah (ﷺ) and we journeyed for a long time until the evening came. I attended the prayer along with the Messenger of Allah (ﷺ).
A horseman came and said: Messenger of Allah, I went before you and climbed a certain mountain where saw Hawazin all together with their women, cattle, and sheep, having gathered at Hunayn.
The Messenger of Allah (ﷺ) smiled and said: That will be the booty of the Muslims tomorrow if Allah wills. He then asked: Who will be on guard tonight?
Anas ibn AbuMarthad al-Ghanawi said: I shall , Messenger of Allah. He said: Then mount your horse. He then mounted his horse, and came to the Messenger of Allah (ﷺ).
The Messenger of Allah said to him: Go forward to this ravine till you get to the top of it. We should not be exposed to danger from your side. In the morning the Apostle of of Allah (ﷺ) came out to his place of prayer, and offered two rak'ahs. He then said: Have you seen any sign of your horseman?
They said: We have not, Messenger of Allah. The announcement of the time for prayer was then made, and while the Messenger of Allah (ﷺ) was saying the prayer, he began to glance towards the ravine. When he finished his prayer and uttered salutation, he said: Cheer up, for your horseman has come. We therefore began to look between the trees in the ravine, and sure enough he had come.
He stood beside the Messenger of Allah (ﷺ), saluted him and said: I continued till I reached the top of this ravine where the Messenger of Allah (ﷺ) commanded me, and in the morning I looked down into both ravines but saw no one.
The Messenger of Allah (ﷺ) asked him: Did you dismount during the night?
He replied: No, except to pray or to relieve myself. The Messenger of Allah (ﷺ) said: You have ensured your entry to (Paradise). No blame will be attached to you supposing you do not work after it.
Sunan Abi Dawud Book 15, Hadith 25
The Messenger of Allah (May peace be upon him) said to me: When you go to your bed, perform ablution like the ablution for prayer, and then lie on your right side and say: O Allah I have handed over my face to thee, entrusted my affairs to thee, and committed my back to thee out of desire for and fear to thee. There is no refuge and no place of safety from thee except by having recource to thee. I believe in Thy Book which Thou hast sent down and in Thy prophet whom thou hast sent down. He said : If you die (that night), you would die in the true religion, and utter these words in the last of that you utter (other prayers). Al-Bara said : I said: I memorise them, and then I repeated, saying “and in Thy Apostle whom Thou hast sent”. He said : No, say : “and in Thy Prophet whom Thou hast sent.
Sunan Abi Dawud Book 43, Hadith 274