Well, the Hijri date 5 Rabi Al Thani 1401 corresponds to the Gregorian date Monday, 9 February 1981. This date lies in the fourth month of the Hijri year 1401 AH, which is Rabi Al-Thani of 1401 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1401/04/05 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 9 February 1981 to its equivalent Arabic date.
The following is the conversion of the Arabic date 5 Rabi Al Thani 1401 AH to its equivalent Gregorian date.
فَأَخْرَجْنَا مَن كَانَ فِيهَا مِنَ ٱلْمُؤْمِنِينَ
Then we brought forth such believers as were there.
Surah Adh-Dhaariyat(51:35)
Sahih al-Bukhari
Oaths and Vows
Chapter: To fulfil one's vow
Narrated Sa`id bin Al-Harith:
that he heard Ibn `Umar saying, "Weren't people forbidden to make vows?" The Prophet (ﷺ) said, 'A vow neither hastens nor delays anything, but by the making of vows, some of the wealth of a miser is taken out."
Sahih al-Bukhari 6692