"I had two times when I would enter upon the Messenger of Allah ﷺ, one at night and one during the day. When I entered at night he would clear his throat (to tell me to come in)."  

عَلِيٌّ كَانَ لِي مِنْ رَسُولِ اللَّهِ ﷺ مَدْخَلاَنِ مَدْخَلٌ بِاللَّيْلِ وَمَدْخَلٌ بِالنَّهَارِ فَكُنْتُ إِذَا دَخَلْتُ بِاللَّيْلِ تَنَحْنَحَ لِي  

"I had two times of visiting the Messenger of Allah ﷺ, at night and during the day. If I came to him when he was praying, he would clear his throat (to let me know he was praying)."  

كَانَ لِي مِنْ رَسُولِ اللَّهِ ﷺ مُدْخَلاَنِ مُدْخَلٌ بِاللَّيْلِ وَمُدْخَلٌ بِالنَّهَارِ فَكُنْتُ إِذَا أَتَيْتُهُ وَهُوَ يُصَلِّي يَتَنَحْنَحُ لِي  

[Machine] Ali said, "I had two entrances from the Prophet ﷺ , an entrance at night and an entrance during the day. So when I entered at night, he would make room for me." Shurahbil ibn Mudrik contradicted him in his chain of narration, but agreed with him on the word "make room for me."  

قَالَ عَلِيٌّ «كَانَ لِي مِنَ النَّبِيِّ ﷺ مَدْخَلَانِ مَدْخَلٌ بِاللَّيْلِ وَمَدْخَلٌ بِالنَّهَارِ فَكُنْتُ إِذَا دَخَلْتُ بِاللَّيْلِ تَنَحْنَحَ لِي» خَالَفَهُ شُرَحْبِيلُ بْنُ مُدْرِكٍ فِي إِسْنَادِهِ وَوَافَقَهُ عَلَى قَوْلِهِ «تَنَحْنَحَ»