[Machine] The Prophet ﷺ mentioned the crescent moon and said, "Fast for its sighting and break your fast for its sighting. If it is cloudy on you, then complete the month as thirty."
عَنِ النَّبِيِّ ﷺ أَنَّهُ ذَكَرَ الْهِلَالَ فَقَالَ صُومُوا لِرُؤْيَتِهِ وَأَفْطِرُوا لِرُؤْيَتِهِ فَإِنْ غُمَّ عَلَيْكُمْ فَعُدُّوا ثَلَاثِينَ
[Machine] The Messenger of Allah ﷺ mentioned the sighting of the new moon and said, "When you see it, start fasting, and when you see it again, break your fast. But if it is cloudy and you are unable to see it, then complete the month as thirty days."
ذَكَرَ رَسُولُ اللهِ ﷺ الْهِلَالَ فَقَالَ إِذَا رَأَيْتُمُوهُ فَصُومُوا وَإِذَا رَأَيْتُمُوهُ فَأَفْطِرُوا فَإِنْ أُغْمِيَ عَلَيْكُمْ فَعُدُّوا ثَلَاثِينَ
"the Messenger of Allah said: 'Fast when you see it and stop fasting when you see it, and if it is obscured from you (too cloudy), then count it as thirty (days). "' (Using translation from Nasāʾī 2117)
قَالَ رَسُولُ اللهِ ﷺ صُومُوا لِرُؤْيَتِهِ وَأَفْطِرُوا لِرُؤْيَتِهِ فَإِنْ غُمَّ عَلَيْكُمُ الشَّهْرُ فَعُدُّوا ثَلَاثِينَ