Musannaf Ibn Abi Shaybah

Hazrat Saeed bin Marjanah narrates that I was sitting behind Hazrat Saad bin Malik while he was offering the Duha (forenoon) prayer. I counted and he performed eight rak'ahs. He sat only in the last rak'ah, recited the Tashahhud in it, then ended the prayer with Salam and thus completed the prayer.