Well, the Hijri date 26 Rabi Al Thani 1397 corresponds to the Gregorian date Thursday, 14 April 1977. This date lies in the fourth month of the Hijri year 1397 AH, which is Rabi Al-Thani of 1397 AH. Both this Hijri and Gregorian date occur on the single day that is Thursday without any doubt. The Arabic date 1397/04/26 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 14 April 1977 to its equivalent Arabic date.
The following is the conversion of the Arabic date 26 Rabi Al Thani 1397 AH to its equivalent Gregorian date.
وَلَقَدْ أَهْلَكْنَا ٱلْقُرُونَ مِن قَبْلِكُمْ لَمَّا ظَلَمُوا۟ ۙ وَجَآءَتْهُمْ رُسُلُهُم بِٱلْبَيِّنَٰتِ وَمَا كَانُوا۟ لِيُؤْمِنُوا۟ ۚ كَذَٰلِكَ نَجْزِى ٱلْقَوْمَ ٱلْمُجْرِمِينَ
We destroyed the generations before you when they did wrong; and their messengers (from Allah) came unto them with clear proofs (of His Sovereignty) but they would not believe. Thus do We reward the guilty folk.
Surah Yunus(10:13)
Sahih al-Bukhari
Prayers (Salat)
Chapter: The mosques which are on the way to Al-Madina and the places where the Prophet (pbuh) had offered Salat (Prayers)
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See translation for hadith 484 above
Sahih al-Bukhari 490