The Messenger of Allah (may Allah's peace and blessings be upon him) used to offer the Duha Prayer as four Rak‘ahs and sometimes as much more as Allah willed
Chapter: It is recommended to pray Duha, the least of which is two rak`ah, the best of which is eight, and the average of which is four or six, and encouragement to do so regularly
Authentic
hadith of Sahih Muslim
Sahih Muslim 719c
‘Ā'ishah (may Allah be pleased with her) reported: The Messenger of Allah (may Allah's peace and blessings be upon him) used to offer the Duha Prayer as four Rak‘ahs and sometimes as much more as Allah willed.
Reported by Muslim (No. 719c, 719d), Ibn Majah (No. 1381) and Ahmad (No. 23777, 23970, 25084).
In this Hadīth, ‘Ā'ishah (may Allah be pleased with her) informed that the Prophet (may Allah's peace and blessings be upon him) used to perform the Duha Prayer as four Rak‘ahs, making Taslīm after every two Rak‘ahs. She also mentioned that he would sometimes pray more than four Rak‘ahs, according to his ability and how active he felt.
Explanation in Arabic
في هذا الحديث ذكرت عائشة رضي الله عنها أن النبي صلى الله عليه وسلم كان يصلِّي الضُّحى أربع ركعات يُسلَّم من كل ركعتين، ثم ذكرت أن النبي صلى الله عليه وسلم قد يزيد على أربع ركعات؛ على حسب قُدرته ونشاطه.
فيه إثبات صلاة الضُّحى من فعله -صلى الله عليه وسلم-.
أن صلاة الضُّحى غير مقيدة بعدد.
Scholars’ grades
Grade taken from the status of the collection (Sahih Muslim).
وعن معاذة العدوية أنها سألت عائشة رضي الله عنها: أكان رسول الله صلى الله عليه وسلم يصوم من كل شهر ثلاثة أيام، فقالت: نعم. فقلت: من أي الشهر كان يصوم؟ قالت: لم يكن يبالي من أي الشهر يصوم. ((رواه…