Well, the Hijri date 28 Rajab 1400 corresponds to the Gregorian date Wednesday, 11 June 1980. This date lies in the seventh month of the Hijri year 1400 AH, which is Rajab of 1400 AH. Both this Hijri and Gregorian date occur on the single day that is Wednesday without any doubt. The Arabic date 1400/07/28 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 11 June 1980 to its equivalent Arabic date.
The following is the conversion of the Arabic date 28 Rajab 1400 AH to its equivalent Gregorian date.
قَالَ يَٰٓإِبْلِيسُ مَا مَنَعَكَ أَن تَسْجُدَ لِمَا خَلَقْتُ بِيَدَىَّ ۖ أَسْتَكْبَرْتَ أَمْ كُنتَ مِنَ ٱلْعَالِينَ
He said: O Iblis! What hindereth thee from falling prostrate before that which I have created with both My hands? Art thou too proud or art thou of the high exalted?
Surah Saad(38:75)
Sahih al-Bukhari
Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
"Verily, those who purchase a small gain at the cost of Allah's Covenant and their oaths, they shall have no portion in the Hereafter (Paradise)... (till) ... and they shall have a painful torment." (V.3 -77)
Narrated `Abdullah bin Abu `Aufa:
A man displayed some merchandise in the market and took an oath that he had been offered a certain price for it while in fact he had not, in order to cheat a man from the Muslims. So then was revealed:-- "Verily! Those who purchase a small gain at the cost of Allah's Covenant and their oaths..."(3.77)
Sahih al-Bukhari 4551