:قال الإمام أبو عبد‌الله جعفر بن محمّد الصادق، عليـهما الـسلام
مَن دَخَلَ فِي هَذَا ٱلـدِّيْنِ بِـٱلرِّجَالِ، أَخْرَجَـهُ مِنْـهُ ٱلـرِّجَالُ كَـمَا أَدْخَلُوْهُ فِيْـهِ؛ مَن دَخَلَ فيْـهِ بِـٱلْـكِتَابِ وَ ٱلـسُّنَّةِ، زَاْلَتِ ٱلـجِبَالُ قَبْلَ أن يَزُوْلَ

“Whosoever enters this Religion (ha-dhāʾd-Dīn) because of people, will be made to leave it because of people — just as they were made to enter it because of them; but whosoever enters it because of the Book of God (al-Kitāb) and the Prophetic Way (as-Sun‧naħ), mountains shall pass-and-perish before they do (i.e., their conviction)!”

— al-ʾImām ʾAbū ʿAbd–Allah Jaʿfar bin Muḥam‧mad aṣ-Ṣādiq عَلَيْـهِمَا ٱلـسَّلَام (c. 81– c. 148 н / c. 700 – c. 765 ᴀᴅ)

⟮Kitāb al-Ghaybaħ, ʾIbnᵘ ʾAbī Zaynab an-Nuʿmānī (d. 360 н / 971 ᴀᴅ), r. Fāris Ḥas‧sūn Karīm (first ed., Dār al-Jawādayn: Qum, 1432 н / 2011 ᴀᴅ), muqad‧dimaŧ al-muʾal‧lif, p. 29⟯