Well, the Hijri date 26 Dhul Qidah 1379 corresponds to the Gregorian date Saturday, 21 May 1960. This date lies in the eleventh month of the Hijri year 1379 AH, which is Dhu Al-Qidah of 1379 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1379/11/26 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 21 May 1960 to its equivalent Arabic date.
The following is the conversion of the Arabic date 26 Dhul Qidah 1379 AH to its equivalent Gregorian date.
قَدْ قَالَهَا ٱلَّذِينَ مِن قَبْلِهِمْ فَمَآ أَغْنَىٰ عَنْهُم مَّا كَانُوا۟ يَكْسِبُونَ
Those before them said it, yet (all) that they had earned availed them not;
Surah Az-Zumar(39:50)
Sahih al-Bukhari
Al-Adha Festival Sacrifice (Adaahi)
Chapter: "Slaughter a young goat as a sacrifice, but it will not be sufficient for anybody else after you."
Narrated Al-Bara':
Abu Burda slaughtered (the sacrifice) before the (`Id) prayer whereupon the Prophet (ﷺ) said to him, "Slaughter another sacrifice instead of that." Abu Burda said, "I have nothing except a Jadha'a." (Shu`ba said: Perhaps Abu Burda also said that Jadha'a was better than an old sheep in his opinion.) The Prophet (ﷺ) said, "(Never mind), slaughter it to make up for the other one, but it will not be sufficient for anyone else after you."
Sahih al-Bukhari 5557