Well, the Hijri date 25 Shaban 1151 corresponds to the Gregorian date Sunday, 7 December 1738. This date lies in the eighth month of the Hijri year 1151 AH, which is Shaban of 1151 AH. Both this Hijri and Gregorian date occur on the single day that is Sunday without any doubt. The Arabic date 1151/08/25 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 December 1738 to its equivalent Arabic date.
The following is the conversion of the Arabic date 25 Shaban 1151 AH to its equivalent Gregorian date.
وَإِذْ أَوْحَيْتُ إِلَى ٱلْحَوَارِيِّۦنَ أَنْ ءَامِنُوا۟ بِى وَبِرَسُولِى قَالُوٓا۟ ءَامَنَّا وَٱشْهَدْ بِأَنَّنَا مُسْلِمُونَ
And when I inspired the disciples, (saying): Believe in Me and in My messenger, they said: We believe. Bear witness that we have surrendered (unto Thee) "we are muslims".
Surah Al-Maaida(5:111)