Mosques and Places of Prayerكتاب الْمَسَاجِدِ وَمَوَاضِعِ الصَّلاَةِ
Abu Ma'mar reported:There was an Amir in Mecca who pronounced taslim twice. Abdullah said: Where did he get this sunnah? Al-Hakam said: There is a hadith to the effect that the Messenger of Allah (ﷺ) did like It