The Complete Pilgrimage Guide · Hadith 613 (#Ḥadīth #3)
Chapter 89 | The Ĥā`ir and Its Sanctity
3 حَدَّثَنِي حَكِيمُ بْنُ دَاوُدَ بْنِ حَكِيمٍ (رحمه الله) عَنْ سَلَمَةَ بْنِ الْخَطَّابِ عَنْ مَنْصُورِ بْنِ الْعَبَّاسِ يَرْفَعُهُ إِلَى أَبِي عَبْدِ اللَّهِ (ع) قَالَ حَرَمُ قَبْرِ الْحُسَيْنِ (ع) خَمْسُ فَرَاسِخَ مِنْ أَرْبَعَةِ جَوَانِبِ الْقَبْرِ
3. Ḥukaym ibn Dāwūd ibn Ḥukaym narrated to me from Salamah ibn Khaťťāb, from Mansūr ibn ‘Abbās, who narrated that: Abū ‘Abdillāh (Imam Sādiq ) said: The sacred boundary of the grave of Ḥusain is five parasangs from each of the four sides of the grave.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).