Well, the Hijri date 30 Safar 1357 corresponds to the Gregorian date Saturday, 30 April 1938. This date lies in the second month of the Hijri year 1357 AH, which is Safar of 1357 AH. Both this Hijri and Gregorian date occur on the single day that is Saturday without any doubt. The Arabic date 1357/02/30 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 30 April 1938 to its equivalent Arabic date.
The following is the conversion of the Arabic date 30 Safar 1357 AH to its equivalent Gregorian date.
فَوَيْلٌۭ لِّلَّذِينَ كَفَرُوا۟ مِن يَوْمِهِمُ ٱلَّذِى يُوعَدُونَ
And woe unto those who disbelieve, from (that) their day which they are promised.
Surah Adh-Dhaariyat(51:60)
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 488