صحيح مسلم

Jabir reported: We went from Mecca to Medina with Allah's Messenger (ﷺ) when my camel fell ill, and the rest of the hadith is the same. (But it in also narrated in it: ) He (the Holy Prophet) said to me: Sell your camel to me. I said: No, but it is yours. He said: No. (it can't be), but sell it to me. I said: No, but, Allah's Messenger, it is yours. He said: No, it can't be, but sell it to me. I said: Then give me an 'uqaya of gold for I owe that to a person and then it would be yours. He (the Holy Prophet) said: I take it (for an 'uqiya of gold) and you reach Medina on it. As I reached Medina, Allah's Messenger (ﷺ) said to Bilal: Give him an 'uqiya of gold and make some extra payment too. He (Jabir) said: He gave me an 'uqiya of gold and made an addition of a qirat. He (Jabir) said: The addition made by Allah's Messenger (ﷺ) was with me (as a sacred trust for belssing) and lay with me in a pocket until the people of Syria took it on the Day of Harra.