Sahih Muslim
1590
Salim b. 'Abdullah (b. 'Umar) reported on the authority of his father that Allah's Messenger ( صلی اللہ علیہ وسلم ) observed the prayer of a traveller, i. e. two rak'ahs in Mina, and other places; so did Abu Bakr and 'Umar, and 'Uthman too..
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