٢ـ عَنْهُ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ هِشَامِ بْنِ سَالِمٍ عَنْ عُمَرَ بْنِ يَزِيدَ قَالَ سَمِعْتُ أَبَا الْحَسَنِ (عَلَيهِ السَّلام) يَقُولُ إِنَّ الدُّعَاءَ يَرُدُّ مَا قَدْ قُدِّرَ وَمَا لَمْ يُقَدَّرْ قُلْتُ وَمَا قَدْ قُدِّرَ عَرَفْتُهُ فَمَا لَمْ يُقَدَّرْ قَالَ حَتَّى لا يَكُونَ.
2. It is narrated from him (narrator of the Hadith above) from his father from Ibn Abi ‘Umayr from Hisham ibn Salim from ‘Umar ibn Yazid who has said the following: “I heard abu al-Hassan  saying, ‘Prayer, and pleading before Allah for help, repeals Quddira, what is already measured, and the unmeasured.’ I (the narrator) then asked the Imam, ‘I know the meaning of what is ‘Measured’, but what is the meaning of the ‘Unmeasured’?’ The Imam said, ‘So that it (a measure, of misfortune) will not come into being.’” 