Well, the Hijri date 4 Ramadan 1366 corresponds to the Gregorian date Tuesday, 22 July 1947. This date lies in the ninth month of the Hijri year 1366 AH, which is Ramadan of 1366 AH. Both this Hijri and Gregorian date occur on the single day that is Tuesday without any doubt. The Arabic date 1366/09/04 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 22 July 1947 to its equivalent Arabic date.
The following is the conversion of the Arabic date 4 Ramadan 1366 AH to its equivalent Gregorian date.
لَعَلَّنَا نَتَّبِعُ ٱلسَّحَرَةَ إِن كَانُوا۟ هُمُ ٱلْغَٰلِبِينَ
(They said): Aye, so that we may follow the wizards if they are the winners.
Surah Ash-Shu'araa(26:40)
Sahih al-Bukhari
Oaths and Vows
Chapter: "Allah will not punish you for what is unintentional in your oaths, but He will punish you for your deliberate oaths ..."
Narrated Abu Musa:
I went to the Prophet (ﷺ) along with a group of Al-Ash`ariyin in order to request him to provide us with mounts. He said, "By Allah, I will not provide you with mounts and I haven't got anything to mount you on." Then we stayed there as long as Allah wished us to stay, and then three very nice looking she-camels were brought to him and he made us ride them. When we left, we, or some of us, said, "By Allah, we will not be blessed, as we came to the Prophet (ﷺ) asking him for mounts, and he swore that he would not give us any mounts but then he did give us. So let us go back to the Prophet (ﷺ) and remind him (of his oath)." When we returned to him (and reminded him of the fact), he said, "I did not give you mounts, but it is Allah Who gave you. By Allah, Allah willing, if I ever take an oath to do something and then I find something else than the first, I will make expiation for my oath and do the thing which is better (or do something which is better and give the expiation for my oath).
Sahih al-Bukhari 6623