Their shaykh, Ibn al-Nu'mān—known among them as al-Mufīd—[who was the teacher of al-Mūsawī and al-Tūsī] (1), composed a book entitled Rites of the Shrines. In it, he made the graves of created beings objects of pilgrimage, just as [the Kaaba] (2), the Sacred House, is visited for Hajj. Allah made it a foundation of well-being for mankind, and it was the first House established for mankind. Circumambulation is therefore performed only around it, prayer is directed only toward it (3), and Allah has commanded pilgrimage only to it (4).
It is necessarily known from the religion of Islam that the Prophet—may Allah bless him and grant him peace—did not command what they have mentioned regarding shrines, nor did he prescribe rites for his nation at the graves of the prophets and the righteous. Rather, this belongs to the religion of the polytheists, concerning whom Allah said:
“And they said: Never abandon your gods! Never abandon Wadd, Suwā', Yaghūth, Ya'ūq, or Nasr!”
[Surah Noah: 23]
Ibn 'Abbās [and others] said: (5) “These were righteous people among…”