Sahih Muslim Book - 1, Hadith - 231

حَدَّثَنَا يَحْيَى بْنُ يَحْيَى قَالَ قَرَأْتُ عَلَى مَالِكٍ عَنْ صَالِحِ بْنِ كَيْسَانَ عَنْ عُبَيْدِ اللَّهِ بْنِ عَبْدِ اللَّهِ بْنِ عُتْبَةَ عَنْ زَيْدِ بْنِ خَالِدٍ الْجُهَنِيِّ قَالَ صَلَّى بِنَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ صَلَاةَ الصُّبْحِ بِالْحُدَيْبِيَةِ فِي إِثْرِ السَّمَاءِ كَانَتْ مِنْ اللَّيْلِ فَلَمَّا انْصَرَفَ أَقْبَلَ عَلَى النَّاسِ فَقَالَ هَلْ تَدْرُونَ مَاذَا قَالَ رَبُّكُمْ؟ قَالُوا اللَّهُ وَرَسُولُهُ أَعْلَمُ قَالَ قَالَ أَصْبَحَ مِنْ عِبَادِي مُؤْمِنٌ بِي وَكَافِرٌ فَأَمَّا مَنْ قَالَ مُطِرْنَا بِفَضْلِ اللَّهِ وَرَحْمَتِهِ فَذَلِكَ مُؤْمِنٌ بِي كَافِرٌ بِالْكَوْكَبِ وَأَمَّا مَنْ قَالَ مُطِرْنَا بِنَوْءِ كَذَا وَكَذَا فَذَلِكَ كَافِرٌ بِي مُؤْمِنٌ بِالْكَوْكَبِ.

It was narrated that Zaid bin Khalid Al-Juhani said: "The Messenger of Allah (s.a.w) led us in Salat As-Subh at Al-Hudaybiyah, after it had rained during the night. When he finished, he turned to the people and said: 'Do you know what your Lord said?' They said: 'Allah and His Messenger know best.' He said: 'He said, "This morning some of My slaves believe in Me and some disbelieve. As for the one who said: 'We got rain by the bounty and mercy of Allah,' he is a believer in Me and a disbeliever in the stars. But as for the one who said, 'We got rain by virtue of such and such a star,' he is a disbeliever in Me and a believer in the stars."