It is narrated from Muhammad bin Qays (may Allah have mercy on him) that Sayyidah Umm Hani (may Allah be pleased with her) came to the Messenger of Allah (peace and blessings be upon him) in Makkah for some need of hers, and she found him (peace and blessings be upon him) offering six rak'ahs of the forenoon (Duha) prayer.
Hadith Referenceالمعجم الأوسط / باب العين / 4410
Hadith Takhrij«أخرجه الطبراني فى «الكبير» برقم: 1057، 1063، والطبراني فى «الأوسط» برقم: 727، 2727»