(1) This hadith, with some variation in wording, is narrated from Jābir ibn Abd Allah, may Allah be pleased with him, in al-Bukhārī, 8:26–27 (Book of Manners, chapter “One Who Did Not Declare a Person a Disbeliever for Saying This on the Basis of Interpretation or Ignorance”). It begins: “Muādh ibn Jabal, may Allah be pleased with him, used to pray with the Prophet, may Allah bless him and grant him peace, and then return to his people and lead them in prayer. He recited al-Baqara, so one man shortened his prayer and performed a brief prayer…” The hadith also appears in Muslim, 1:339–340 (Book of Prayer, chapter “Instructing Imams to Keep the Prayer Brief While Performing It in Full”); Sunan Abī Dāwūd, 1:292 (Book of Prayer, chapter “Keeping the Prayer Brief”); Sunan al-Nasāī, 2:76–77 (Book of Leading the Prayer, chapter “A Man Leaving the Imam’s Prayer”); and al-Musnad (al-Halabī ed.), 3:124, 229, 300, 308, 369. (2) This hadith, with some variation in wording, is narrated from Abū Hurayra, may Allah be pleased with him, in al-Bukhārī, 1:138 (Book of the Call to Prayer, chapter “When One Prays by Himself, He May Lengthen the Prayer as Much as He Wishes”). It begins there: “When one of you leads the people in prayer, let him keep it brief…” It also appears in Muslim, 1:341 (Book of Prayer, chapter “Instructing Imams to Keep the Prayer Brief While Performing It in Full”); Sunan al-Tirmidhī, 1:150–151 (Book of Prayer, chapter “When One of You Leads the People, Let Him Keep It Brief”); and al-Musnad (al-Maārif ed.), 13:201; (al-Halabī ed.), 2:502, 537. Commenting on the hadith, al-Tirmidhī stated: “Reports on this subject are also narrated from Adī ibn Hātim, Anas, Jābir ibn Samura, Mālik ibn Abd Allah, Abū Wāqid, Uthmān ibn al-Ās, Abū Masūd, Jābir ibn Abd Allah, and Ibn Abbās.” (3) This hadith is narrated from Abū Sahla al-Sāib ibn Khallād, may Allah be pleased with him, in Sunan Abī Dāwūd, 1:189 (Book of Prayer, chapter “The Dislike of Spitting in the Mosque”). Its text reads: “A man led some people in prayer and spat toward the qibla (direction of prayer) while the Messenger of Allah, may Allah bless him and grant him peace, was watching. When the man had finished, the Messenger of Allah, may Allah bless him and grant him peace, said, ‘He is not to lead you in prayer.’ The man later sought to lead them again, but they prevented him and informed him of what the Messenger of Allah, may Allah bless him and grant him peace, had said. He then brought the matter to the Messenger of Allah, may Allah bless him and grant him peace, who replied, ‘Yes.’ I believe he also said, ‘You have offended Allah and His Messenger.’” The hadith is also in al-Musnad (al-Halabī ed.).