Well, the Hijri date 22 Rabi Al Awwal 1399 corresponds to the Gregorian date Monday, 19 February 1979. This date lies in the third month of the Hijri year 1399 AH, which is Rabi Al-Awwal of 1399 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1399/03/22 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 19 February 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 22 Rabi Al Awwal 1399 AH to its equivalent Gregorian date.
وَقِيلَ لِلنَّاسِ هَلْ أَنتُم مُّجْتَمِعُونَ
And it was said unto the people: Are ye (also) gathering?
Surah Ash-Shu'araa(26:39)
Sahih al-Bukhari
Ablutions (Wudu')
Chapter: (What is said) about the urine of camels, sheep and other animals and about their folds
Narrated Anas:
Prior to the construction of the mosque, the Prophet (ﷺ) offered the prayers at sheep-folds.
Sahih al-Bukhari 234