Al-Kāfi - Volume 3 > How Often a Patient Should Be Visited, How Long the Duration of Visitation Should Be and Complete Visit
Hadith #2

2ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنْ عَبْدِ الله بْنِ الْمُغِيرَةِ عَنْ عَبْدِ الله بْنِ سِنَانٍ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ الْعِيَادَةُ قَدْرَ فُوَاقِ نَاقَةٍ أَوْ حَلْبِ نَاقَةٍ.

2. Ali ibn Ibrahim has narrated from his father from ’Abd Allah ibn al-Mughirah from ’Abd Allah ibn Sinan who has said the following: “Abu ‘Abd Allah, ‘Alayhi al-Salam, has said that duration of visiting a patient is as long as a baby- camel is given the chance to suckle the mother during milking the camel or as long as it takes to milk a camel.”