Yazid al-Rashk (may Allah have mercy on him) says: I heard from Mu'adhah, she said: I asked Umm al-Mu'mineen Sayyidah Aisha Siddiqa (may Allah be pleased with her) whether the Prophet Muhammad (peace and blessings be upon him) used to perform the Duha prayer. She replied: Yes! He used to pray four rak'ahs, and would add more as Allah willed.
Hadith Referenceشمائل ترمذي / باب صلاة الضحى / 287
Hadith Gradingزبیر علی زئی:سنده صحيح
Hadith Takhrij{ « سنده صحيح » } : «صحيح مسلم (719) ، مسند ابي داود الطيالسي (1571 ، نسخه محققه : 1672)»