One Who Prayer is Disliked Behind

Here is a blog post by IslamicSalvation, which can be found here:

باب من تكره الصلاة خلفه و العبد يؤم القوم و من أحق أن يؤم

Chapter on the one whom Prayer is disliked behind him, and the slave leading a people, and who is more deserving to lead

جماعة، عن أحمد بن محمد، عن الحسين بن سعيد، عن فضالة بن أيوب، عن الحسين بن عثمان، عن ابن مسكان، عن أبي بصير، عن أبي عبدالله (عليه السلام) قال: خمسة لا يؤمون الناس على كل حال: المجذوم والابرص والمجنون وولد الزنا والاعرابي (صحيح)

1. A large number of my teachers from Ahmad bin Muhammad from Husayn bin Said from Fadhala bin Ayub from Husayn bin Uthman from Ibn Muskan from Abi Basir from Abi Abdillah (a.s) who said : five do not lead the people under any condition (whatsoever) : the leper (with varying forms of leprosy), the one who is mentally disabled, the one of impure birth, and the bedouin. (Sahih)

علي بن إبراهيم، عن أبيه، عن حماد، عن حريز، عن زرارة، عن أبي جعفر (عليه السلام) قال: قلت له: الصلاة خلف العبد؟ فقال: لا بأس به إذا كان فقيها ولم يكن هناك أفقه منه، قال: قلت اصلي خلف الاعمى؟ قال: نعم إذا كان له من يسدده وكان فضلهم، قال: وقال أمير المؤمنين (عليه السلام): لا يصلين أحدكم خلف المجذوم والابرص والمجنون والمحدود وولد الزنا والاعرابي لا يؤم المهاجرين  (حسن)

2. Ali bin Ibrahim from his father (Ibrahim bin Hashim) from Hammad (bin Isa) from Hariz (bin Abdillah) from Zurara (bin A’yan) from Abi Ja’far (a.s), I (Zurara) said to Him (a.s) : do I pray behind a slave? So He (a.s) said : there is nothing wrong in that - if he is a Faqih (one having deep insight/understanding of Islam) and there is no one more understanding (of Islam i.e Afqah) than him (there), I (Zurara) said : do I pray behind the blind? He (a.s) said : yes, if there is someone to help him, and if he is the best of them (i.e of the group wishing to pray), and He (a.s) said : Amir-ul-Mumineen (a.s) had said : no one of you should pray behind the leper (of varying forms of leprosy), and the mentally disabled, and the one who has undergone the Hadd (been penaly punished), and the one of impure birth, and the Bedouin does not lead the Muhajirun (i.e those who had done Hijra). (Hasan due to Ibrahim bin Hashim)

علي بن إبراهيم، عن أبيه، عن عبدالله بن المغيرة، عن غياث بن إبراهيم، عن أبي عبدالله (عليه السلام) قال: لا بأس بالغلام الذي لم يبلغ الحلم أن يؤم القوم وأن يؤذن (حسن أو موثق)

3. Ali bin Ibrahim from his father (Ibrahim bin Hashim) from Abdallah bin Mughira from Giyath bin Ibrahim from Abi Abdillah (a.s) who said : there is no problem if a boy not yet reached puberty to lead a people and to make the Adhan. (Hasan due to Ibrahim bin Hashim OR Muwathaq due to the nature of Ghiyath’s Madhab)