Well, the Hijri date 13 Shaban 1399 corresponds to the Gregorian date Saturday, 7 July 1979. This date lies in the eighth month of the Hijri year 1399 AH, which is Shaban of 1399 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1399/08/13 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 7 July 1979 to its equivalent Arabic date.
The following is the conversion of the Arabic date 13 Shaban 1399 AH to its equivalent Gregorian date.
قَدْ سَأَلَهَا قَوْمٌۭ مِّن قَبْلِكُمْ ثُمَّ أَصْبَحُوا۟ بِهَا كَٰفِرِينَ
A folk before you asked (for such disclosures) and then disbelieved therein.
Surah Al-Maaida(5:102)
Sahih al-Bukhari
Sales and Trade
Chapter: The trade of cloth, wearing of which is undesirable
Narrated Aisha:
(mother of the faithful believers) I bought a cushion with pictures on it. When Allah's Messenger (ﷺ) saw it, he kept standing at the door and did not enter the house. I noticed the sign of disgust on his face, so I said, "O Allah's Messenger (ﷺ)! I repent to Allah and H is Apostle . (Please let me know) what sin I have done." Allah's Messenger (ﷺ) said, "What about this cushion?" I replied, "I bought it for you to sit and recline on." Allah's Messenger (ﷺ) said, "The painters (i.e. owners) of these pictures will be punished on the Day of Resurrection. It will be said to them, 'Put life in what you have created (i.e. painted).' " The Prophet (ﷺ) added, "The angels do not enter a house where there are pictures."
Sahih al-Bukhari 2105