Al-Kāfi - Volume 2 > One’s Saying: “O Lord, O Lord”
Hadith #1

1ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنْ مُحَمَّدِ بْنِ عِيسَى عَنْ أَيُّوبَ بْنِ الْحُرِّ أَخِي أُدَيْمٍ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلام) قَالَ مَنْ قَالَ عَشْرَ مَرَّاتٍ يَا رَبِّ يَا رَبِّ قِيلَ لَهُ لَبَّيْكَ مَا حَاجَتُكَ.

1. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from Muhammad ibn ‘Isa from Ayyub ibn al-Hurr brother of ‘Udaym from abu ‘Abd Allah (a.s.) who has said the following: “Whoever says ten times, ‘O Lord.’ It will be said to him, “Your call for help is well heard and noted. What kind of help do you need?’”