The month is thus, thus (two times). He then withdrew (one of) his fingers at the third turn.
ضَرَبَ رَسُولُ اللَّهِ ﷺ بِيَدِهِ عَلَى الأُخْرَى فَقَالَ الشَّهْرُ هَكَذَا وَهَكَذَا ثُمَّ نَقَصَ فِي الثَّالِثَةِ إِصْبَعًا
the Prophet struck one hand with the other and said: "The month is like this and like this and like this," retaining one finger the third time.
عَنِ النَّبِيِّ ﷺ أَنَّهُ ضَرَبَ بِيَدِهِ عَلَى الأُخْرَى وَقَالَ الشَّهْرُ هَكَذَا وَهَكَذَا وَهَكَذَا وَنَقَصَ فِي الثَّالِثَةِ إِصْبَعًا
[Machine] The Messenger of Allah ﷺ came out to us and he was striking one hand with the other, saying, "The month is like this and this." Then he decreased his finger on the third one.
خَرَجَ عَلَيْنَا رَسُولُ اللهِ ﷺ وَهُوَ يَضْرِبُ بِإِحْدَى يَدَيْهِ عَلَى الْأُخْرَى وَهُوَ يَقُولُ الشَّهْرُ هَكَذَا وَهَكَذَا ثُمَّ نَقَصَ أُصْبُعَهُ فِي الثَّالِثَةِ
the Prophet struck one hand with the other and said: "The month is like this and like this and like this," retaining one finger the third time. (Using translation from Nasāʾī 2135)
عَنِ النَّبِيِّ ﷺ أَنَّهُ ضَرَبَ بِيَدِهِ عَلَى الْأُخْرَى وَقَالَ «الشَّهْرُ هَكَذَا وَهَكَذَا وَهَكَذَا» وَنَقَصَ فِي الثَّالِثَةِ إصْبُعًا