Aishah said; The Messenger of Allah ﷺ prayed in his house sitting and the people prayed behind him standing. He made a sign to them (asking them) to sit down. When he finished the prayer, he said: The IMAM is appointed only to be followed; so when he prays standing. Pray standing ; and when he raises himself, raise yourself: and when he prays sitting. Pray sitting.
Hadith Referenceسنن ابي داود / كتاب الصلاة / 605
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح بخاري (688) صحيح مسلم (412)
Hadith Takhrij« صحیح البخاری/الأذان 51 (688)، وتقصیر الصلاة 17 (1113)، 20 (1119)، (تحفة الأشراف: 17156)، وقد أخرجہ: صحیح مسلم/الصلاة 19 (412)، سنن ابن ماجہ/ إقامة الصلاة 144 (1237)، موطا امام مالک/ صلاة الجماعة 5 (17)، مسند احمد (6/114،169) (صحیح) »