Abu Zubair reported: Abdullah b Zubair  used to say La ilaha ila 

−Allah at the end of every prayer like the hadith narrated by Ibn

Numair and he reported it in the end, and then reported Ibn Zubair

 saying:  The Messenger  of Allah (may peace be upon him) 

uttered  La ilaha ila−Allah at the end of  every prayer.

  Hadith Sahih Muslim