ﲡ ﲢ ﲣ ﲤ ﲥ ﲦ ﲧ ﲨ ﲩ ﲪ ﲫ ﲬ ﲭ ﲮ
[Zechariah] said, "My Lord, make for me a sign." He said, "Your sign is that you will not speak to the people for three nights, [being] sound."
ﲡ ﲢ ﲣ ﲤ ﲥ ﲦ ﲧ ﲨ ﲩ ﲪ ﲫ ﲬ ﲭ ﲮ
[Zechariah] said, "My Lord, make for me a sign." He said, "Your sign is that you will not speak to the people for three nights, [being] sound."
Tafsir
Verse range: 19:10
"Appoint for me a sign" Meaning: Appoint for me a sign by which I may know the occurrence of that which You have given me glad tidings of.
"He said, 'Your sign is that you shall not speak to the people for three nights, though you are sound.'" Meaning: You shall be unable to speak, though you are physically healthy, with sound limbs and a normal constitution, suffering from neither muteness nor a speech impediment.
Note on the duration: The mention of "nights" here, and "days" in [Surah] Al-Imran, indicates that the prohibition of speech lasted for three full days and their nights.