حَدَّثَنَا مُحَمَّدُ بْنُ بِشْرٍ حَدَّثَنَا إِسْمَاعِيلُ بْنُ أَبِي خَالِدٍ عَنْ مُحَمَّدِ بْنِ سَعْدٍ عَنْ أَبِيهِ سَعْدٍ قَالَ خَرَجَ عَلَيْنَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَهُوَ يَضْرِبُ بِإِحْدَى يَدَيْهِ عَلَى الْأُخْرَى وَهُوَ يَقُولُ الشَّهْرُ هَكَذَا وَهَكَذَا ثُمَّ نَقَصَ أُصْبُعَهُ فِي الثَّالِثَةِ
مسند امام احمد بن حنبل · Hadith 1594
It was narrated from Muhammad bin Saad that his father Saad said: The Messenger of Allah (PBUH) came out to us, striking one hand against the other and saying: "The month is like this and like this," then he held one finger down the third time.
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020
Sanad
حَدَّثَنَا مُحَمَّدُ بْنُ بِشْرٍ حَدَّثَنَا إِسْمَاعِيلُ بْنُ أَبِي خَالِدٍ عَنْ مُحَمَّدِ بْنِ سَعْدٍ عَنْ أَبِيهِ سَعْدٍ