عَنِ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُ قَالَ: كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ يُفْصِلُ بَيْنَ الْوِتْرِ وَالشَّفْعِ بِتَسْلِيمَةٍ وَيُسْمِعُنَا إِيَّاهَا
It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) would separate between one and two rak‘ahs in (the three) witr by saying salam once, and he (peace and blessings be upon him) would also make us hear this salam.