Well, the Hijri date 15 Rajab 1280 corresponds to the Gregorian date Friday, 25 December 1863. This date lies in the seventh month of the Hijri year 1280 AH, which is Rajab of 1280 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1280/07/15 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 25 December 1863 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Rajab 1280 AH to its equivalent Gregorian date.
وَٱلَّذِينَ تَبَوَّءُو ٱلدَّارَ وَٱلْإِيمَٰنَ مِن قَبْلِهِمْ يُحِبُّونَ مَنْ هَاجَرَ إِلَيْهِمْ وَلَا يَجِدُونَ فِى صُدُورِهِمْ حَاجَةًۭ مِّمَّآ أُوتُوا۟ وَيُؤْثِرُونَ عَلَىٰٓ أَنفُسِهِمْ وَلَوْ كَانَ بِهِمْ خَصَاصَةٌۭ ۚ وَمَن يُوقَ شُحَّ نَفْسِهِۦ فَأُو۟لَٰٓئِكَ هُمُ ٱلْمُفْلِحُونَ
Those who entered the city and the faith before them love those who flee unto them for refuge, and find in their breasts no need for that which hath been given them, but prefer (the fugitives) above themselves though poverty become their lot. And whoso is saved from his own avarice - such are they who are successful.
Surah Al-Hashr(59:9)