Well, the Hijri date 21 Rabi Al Awwal 1401 corresponds to the Gregorian date Tuesday, 27 January 1981. This date lies in the third month of the Hijri year 1401 AH, which is Rabi Al-Awwal of 1401 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1401/03/21 is calculated using the Umm Al-Qura calendar and the sighting of the moon. One thing to remember is that this Arabic date may occur on different Gregorian date depending upon the region and country and obviously the moon.
If you are still not sure about the date then you can use our Arabic date converter.
The following is the conversion of the Gregorian date 27 January 1981 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Rabi Al Awwal 1401 AH to its equivalent Gregorian date.
وَلَا طَعَامٌ إِلَّا مِنْ غِسْلِينٍۢ
Surah Al-Haaqqa(69:36)
Sahih al-Bukhari
Manumission of Slaves
Chapter: The witness for manumission
Narrated Qais:
When Abu Huraira accompanied by his slave came intending to embrace Islam, they lost each other on the way. (When the slave showed up) Abu Huraira said (to the Prophet), "I make you witness that the slave is free for Allah's Cause."
Sahih al-Bukhari 2532