Well, the Hijri date 21 Jumada Al Oula 1357 corresponds to the Gregorian date Monday, 18 July 1938. This date lies in the fifth month of the Hijri year 1357 AH, which is Jumada Al-Awwal of 1357 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1357/05/21 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 18 July 1938 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Jumada Al Oula 1357 AH to its equivalent Gregorian date.
ثُمَّ أَخَذْتُ ٱلَّذِينَ كَفَرُوا۟ ۖ فَكَيْفَ كَانَ نَكِيرِ
Then seized I those who disbelieved, and how intense was My abhorrence!
Surah Faatir(35:26)
Sahih al-Bukhari
Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
The Statement of Allah "Who have made the Qur'an into parts (i.e., believed in one part and disbelieved in the other) ." (V.15:91)
Narrated Ibn `Abbas:
Those who have made their Scripture into parts are the people of the Scripture who divided it into portions and believed in a part of it and disbelieved the other.
Sahih al-Bukhari 4705