Maryam - 19:26

فَكُلِي وَاشْرَبِي وَقَرِّي عَيْنًا فَإِمَّا تَرَيِنَّ مِنَ الْبَشَرِ أَحَدًا فَقُولِي إِنِّي نَذَرْتُ لِلرَّحْمَنِ صَوْمًا فَلَنْ أُكَلِّمَ الْيَوْمَ إِنسِيًّا
[19:26]
So eat and drink and refresh the eye. Then if you see any mortal, say: Surely I have vowed a fast to the Beneficent Allah, so I shall not speak to any man today.
"So eat and drink and cool (thine) eye. And if thou dost see any man, say, 'I have vowed a fast to (Allah) Most Gracious, and this day will I enter into not talk with any human being'"
So eat and drink and be consoled. And if thou meetest any mortal, say: Lo! I have vowed a fast unto the Beneficent, and may not speak this day to any mortal.