It was narrated from Muhammad bin Hamzah bin Yusuf bin 'Abdullah bin Salam, from his father, that his grandfather 'Abdullah bin Salam said:
"A man came to the Prophet (ﷺ) and said, 'The tribe of Banu so-and- so, who were descended from the Jews, have become Muslim, and they are starving, and I am afraid that they may apostatize.' The Prophet (ﷺ) said: 'Who has something with him?' A Jewish man said: 'I have such and such, and he named it, and I think he said three hundred Dinar for such and such 'an amount (of produce) from the garden of the tribe of Banu so-and-so.' The Messenger of Allah (ﷺ) said: 'For such and such a price at such and such a time, but not from the garden of the tribe of Banu so-and- so."'
English reference: Vol. 3, Book 12, Hadith 2281
Arabic reference: Book 12, Hadith 2367