Well, the Hijri date 1 Rajab 1391 corresponds to the Gregorian date Saturday, 21 August 1971. This date lies in the seventh month of the Hijri year 1391 AH, which is Rajab of 1391 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1391/07/01 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 21 August 1971 to its equivalent Arabic date.
The following is the conversion of the Arabic date 1 Rajab 1391 AH to its equivalent Gregorian date.
كَذَٰلِكَ يَطْبَعُ ٱللَّهُ عَلَىٰ قُلُوبِ ٱلَّذِينَ لَا يَعْلَمُونَ
Thus doth Allah seal the hearts of those who know not.
Surah Ar-Room(30:59)
Sahih al-Bukhari
Hajj (Pilgrimage)
Chapter: The praising and glorification of Allah and saying Takbir before Talbiya, while mounting animal
Narrated Anas bin Malik:
Allah's Messenger (ﷺ) offered four rak`at of Zuhr prayer at Medina and we were in his company, and two rak`at of the `Asr prayer at Dhul-Hulaifa and then passed the night there till it was dawn; then he rode, and when he reached Al-Baida', he praised and glorified Allah and said Takbir (i.e. Al hamdu-li l-lah and Subhanallah(1) and Allahu-Akbar). Then he and the people along with him recited Talbiya with the intention of performing Hajj and Umra. When we reached (Mecca) he ordered us to finish the lhram (after performing the Umra) (only those who had no Hadi (animal for sacrifice) with them were asked to do so) till the day of Tarwiya that is 8th Dhul-Hijja when they assumed Ihram for Hajj. The Prophet sacrificed many camels (slaughtering them) with his own hands while standing. While Allah's Apostle was in Medina he sacrificed two horned rams black and white in color in the Name of Allah."
Sahih al-Bukhari 1551