Disciplines to Maintain in the State of ...
Al-Kāfi|Volume 4|Book 3|Chapter 99
4ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ مُحَمَّدِ بْنِ الْحُسَيْنِ عَنْ مُحَمَّدِ بْنِ إِسْمَاعِيلَ عَنْ حَمَّادِ بْنِ عِيسَى عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلاَم) قَالَ
لَيْسَ لِلْمُحْرِمِ أَنْ يُلَبِّيَ مَنْ دَعَاهُ حَتَّى يَقْضِيَ إِحْرَامَهُ قُلْتُ كَيْفَ يَقُولُ قَالَ يَقُولُ يَا سَعْدُ.
4. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from Muhammad ibn ‘Isma‘il from Hammad ibn ‘Isa from Abu ‘Abdillah 
who said,
“One who is in the state of Ihram must not answer anyone who calls him with the word ‘Labbayka’ until his Ihram is complete.“ I then asked, “How must he say it?“ He (the Imam) said, “He can say, ‘O Sa‘d.”
- صحيحMirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (7/330)Allamah Baqir al-Majlisi
