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Surah 2. Al-Baqara
Ayah 57
57وَظَلَّلْنَا عَلَيْكُمُ ٱلْغَمَامَ وَأَنزَلْنَا عَلَيْكُمُ ٱلْمَنَّ وَٱلسَّلْوَىٰ ۖ كُلُوا۟ مِن طَيِّبَـٰتِ مَا رَزَقْنَـٰكُمْ ۖ وَمَا ظَلَمُونَا وَلَـٰكِن كَانُوٓا۟ أَنفُسَهُمْ يَظْلِمُونَ
[57] (Remember that) We caused the cloud to overshadow you and provided you with72 manna and salva73 for your food, saying, "Eat of the clean and pure things We have bestowed upon you" (In spite of this, your forefathers violated Our commands:) however, they did not harm Us but harmed only themselves.
72That is, "We sheltered you with clouds when you entered the Sinai Peninsula and had no place of shelter from the heat of the sun." One should remember that the Israelites had emigrated in large numbers from Egypt and had no place in the Sinai Peninsula to hide their heads, not to speak of houses and tents. Had Allah not kept the sky cloudy for a long time, they would have perished by the scorching heat of the desert sun.
73Manna and salva were the natural relief provisions supplied by Allah to feed the Israelites in the wilderness. Manna fell on the ground like dew-drops and salva flew in thousands like quails. There was such a plenty of these provisions that a whole nation lived on them for forty years and was never confronted with starvation or famine. In modern times even a well developed and resourceful country fords it extremely difficult to make adequate food arrangements for a few hundred thousand emigrants if they happen to enter it suddenly and unexpectedly. (For details refer to Exodus, 16; Numbers, 11:7-9, 31-32; Joshua, 5:12).