حَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، عَنْ شُعْبَةَ، عَنِ الْحَكَمِ، وَمَنْصُورٍ، عَنْ مُجَاهِدٍ، عَنْ أَبِي مَعْمَرٍ، أَنَّ أَمِيرًا، كَانَ بِمَكَّةَ يُسَلِّمُ تَسْلِيمَتَيْنِ فَقَالَ عَبْدُ اللَّهِ أَنَّى عَلِقَهَا قَالَ الْحَكَمُ فِي حَدِيثِهِ إِنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ يَفْعَلُهُ .
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.
Source: Sahih Muslim — repository translation · Imam Muslim ibn al-Hajjaj al-Naysaburi — authenticity/grade metadata requires independent source review · Sunnah.comAudio not available for the selected reciter.
Source: Sahih Muslim — repository arabic · Imam Muslim ibn al-Hajjaj al-Naysaburi · Sunnah.com