Ati said, I asked Ibn Abbas, "How should I pray when I am in Mecca and do not pray with the imam?"He replied, "Two units, the practice of Abu Qasim ﷺ."
Azami 2873
Sahih
عن موسى بن سلمة الهذلي قال
سألت ابن عباس: كيف أصلي إذا كنت بمكة إذا لم أصل مع الإمام؟ فقال: ركعتين سنة أبي القاسم ﷺ.
Muslim narrated it in Prayer of the Traveler (688) through several routes from Muhammad bin Jafar, who said, Shuba narrated to us, saying, I heard Qatada narrating from Musa bin Salama Hudhali, and he related it.