1496. hadíth
وَقَالَ أَمِيرُ اَلْمُؤْمِنِينَ عَلَيْهِ اَلسَّلاَمُ: «اَلسَّحَابُ غِرْبَالُ اَلْمَطَرِ لَوْ لاَ ذَلِكَ لَأَفْسَدَ كُلَّ شَيْءٍ وَقَعَ عَلَيْهِ».
The Commander of the Faithful Imam Ali ibn Abi Talib (a.s) said: "The clouds are the sieve of the rain; without that, it would ruin everything it falls upon”.