Quran 3:41 Ali 'Imran, ayah 41 of 200

قَالَ رَبِّ ٱجْعَل لِّىٓ ءَايَةً ۖ قَالَ ءَايَتُكَ أَلَّا تُكَلِّمَ ٱلنَّاسَ ثَلَـٰثَةَ أَيَّامٍ إِلَّا رَمْزًا ۗ وَٱذْكُر رَّبَّكَ كَثِيرًا وَسَبِّحْ بِٱلْعَشِىِّ وَٱلْإِبْكَـٰرِ ۝٤١

3:41 He said: My Lord! Appoint a token for me. (The angel) said: The token unto thee (shall be) that thou shalt not speak unto mankind three days except by signs. Remember thy Lord much, and praise (Him) in the early hours of night and morning.