Shama-il Tirmidhi Chapter 39, Hadith Number 23 (270).

‘Abdullah bin Shaqeeq Radiyallahu’Anhu reports: “I asked ‘Aayesah about the (nawaafil) prayers of Rasulullah Sallallahu ‘Alayhi Wasallam?”. She replied: “He used to perform two rak’ahs before and two after zuhr. Two after maghrib and two after ‘eshaa, and two before fajr”.

Commentary
Besides the two rak’ahs before the zuhr, the rak’ahs mentioned are the same as that of the Hanafi madh-hab. The view of the Hanafis is that the sunnah before zuhr consists of four rak’ahs. This has been mentioned previously in the commentary of the hadith narrated by Sayyidina Ibn ‘Umar Radiyallahu ‘Anhu. A hadith of Sayyiditina, ‘Aayeshah Radiyallahu ‘Anha is mentioned in the Bukhaari that: “Rasulullah Sallallahu ‘Alayhi Wasallam did not neglect the performing of four rak’ahs before zuhr, and two rak’ahs before fajr”. Meaning he performed them regularly. Therefore, it shall be said that this (performing of two rak’ahs) was because of some necessity.