[Machine] An Arab came to the Messenger of Allah ﷺ and said, "I have seen the crescent moon." The Messenger ﷺ said, "Do you testify that there is no deity worthy of worship except Allah and that Muhammad is His servant and Messenger?" The man replied, "Yes." Then the Prophet ﷺ called out, "Announce to the people to fast." [99] 2435 Ahmad ibn Sulayman informed us, on the authority of Abu Dawud, on the authority of Sufyan, on the authority of Simak, on the authority of Ikrimah, who said it was a statement from the Messenger of Allah ﷺ. 2436 Muhammad ibn Hatim informed us, he said: Hibban informed us, he said: Abdullah informed us, on the authority of Sufyan, on the authority of Simak, on the authority of Ikrimah, who said it was a statement from the Messenger of Allah ﷺ.  

جَاءَ أَعْرَابِيٌّ إِلَى رَسُولِ اللهِ ﷺ فَقَالَ رَأَيْتُ الْهِلَالَ فَقَالَ «أَتَشْهَدُ أَنْ لَا إِلَهَ إِلَّا اللهُ وَأَنَّ مُحَمَّدًا عَبْدُهُ وَرَسُولُهُ؟» فَقَالَ نَعَمْ «فَنَادَى مُنَادِي النَّبِيُّ ﷺ أَنْ صُومُوا» [99] 2435 أَخْبَرَنَا أَحْمَدُ بْنُ سُلَيْمَانَ عَنْ أَبِي دَاوُدَ عَنْ سُفْيَانَ عَنْ سِمَاكٍ عَنْ عِكْرِمَةَ مُرْسَلٌ 2436 أَخْبَرَنَا مُحَمَّدُ بْنُ حَاتِمٍ قَالَ أَخْبَرَنَا حِبَّانُ قَالَ أَخْبَرَنَا عَبْدُ اللهِ عَنْ سُفْيَانَ عَنْ سِمَاكٍ عَنْ عِكْرِمَةَ مُرْسَلٌ  

'Abdur-Rahman bin Zaid bin Al-Khattab addressed the people on the day concerning which there was doubt (as to whether the month had begun) and said: "I sat with the Companions of the Messenger of Allah and asked them, and they a narrated that the Messenger of Allah said: 'Fast when you see it and stop fasting when you see it, and perform the rites on that basis. If it is obscured, then complete thirty days, and if two witnesses testify then fast and stop fasting." (Using translation from Nasāʾī 2116)   

أَلَا إِنِّي جَالَسْتُ أَصْحَابَ رَسُولِ اللهِ ﷺ وَسَأَلْتُهُمْ وَإِنَّهُمْ حَدِّثُونِي أَنَّ رَسُولَ اللهِ ﷺ قَالَ «صُومُوا لِرُؤْيَتِهِ وَأَفْطِرُوا لِرُؤْيَتِهِ وَانْسُكُوا لَهَا فَإِنْ غُمَّ عَلَيْكُمْ فَأَتِمُّوا ثَلَاثِينَ وَإِنْ شَهِدَ شَاهِدَانِ فَصُومُوا وَأَفْطِرُوا»