Ibn Mas'ud said that in the time of God's messenger the moon was split in two portions, one above the mountain and one below it, and God's messenger said, "Testify." [*] *A call to the people to testify to his prophetic office, or to the miracle. (Bukhari and Muslim.)
Hadith Referenceمشكوة المصابيح / كتاب الفضائل والشمائل / 5855
Hadith Gradingالألبانی:مُتَّفَقٌ عَلَيْهِ | زبیر علی زئی:متفق عليه
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «متفق عليه، رواه البخاري (4864) و مسلم (45. 43/ 2800)»