Sunan an-Nasa'i #2142 · The Book of Fasting

Sunan an-Nasa'iIt was narrated from Ibn 'Umar that the Prophet said
Sunan an-Nasa'i · Book 22 · The Book of Fasting
Sunan an-Nasa'i · كتاب 22 · كتاب الصيام
"The month is like this," and (one of the narrators) Shubah did the same gesture as Jabalah had done, copying, Ibn 'Umar: "It is twenty-nine, as he gestured twice with all fingers of both hands, and putting down one of his fingers the third time
أَخْبَرَنَا مُحَمَّدُ بْنُ عَبْدِ الأَعْلَى، قَالَ حَدَّثَنَا خَالِدٌ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ جَبَلَةَ بْنِ سُحَيْمٍ، عَنِ ابْنِ عُمَرَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏
"‏ الشَّهْرُ هَكَذَا ‏"‏ ‏.‏ وَوَصَفَ شُعْبَةُ عَنْ صِفَةِ جَبَلَةَ عَنْ صِفَةِ ابْنِ عُمَرَ أَنَّهُ تِسْعٌ وَعِشْرُونَ فِيمَا حَكَى مِنْ صَنِيعِهِ مَرَّتَيْنِ بِأَصَابِعِ يَدَيْهِ وَنَقَصَ فِي الثَّالِثَةِ إِصْبَعًا مِنْ أَصَابِعِ يَدَيْهِ ‏.‏
Reference : Sunan an-Nasa'i 2142In-book reference : Book 22, Hadith 53