‏الإيمان : Hadeeth No:63 It is narrated on the authority of 'Abdullah b. 'Amr that a man asked the Messenger of Allaah (may peace and blessings be upon him) which of the merits (is superior) in Islam. He (the Prophet) remarked: That you provide food and extend greetings to one whom you know or do not know....

‏البيوع : Hadeeth No:3866 Fadala b. 'Ubaid reported: We were in the company of Allaah's Messenger ( sallAllaahu alayhi wa sallam) on the day (of the Victory of) Khaibar, and made transaction with the Jews for the 'uqiya of gold for the dinars or three (gold coins), whereupon Allaah's Messenger (sallAllaahu alayhi wa sallam) ...