ibn Aḥmad ibn Muḥammad ibn Aḥmad ibn Muḥammad ibn Haskan al-Qurashī, al-ʿĀmirī, al-Naysābūrī, a Ḥanafī who served as a judge.
He was also known as Ibn al-Ḥaddāʾ and traced his lineage back to the emir who opened Khurasan, ʿAbd Allāh ibn ʿĀmir ibn Kurayz.
He transmitted hadith from his grandfather, from Abū al-Ḥasan al-ʿAlawī, Abū ʿAbd Allāh al-Ḥākim, Abū Ṭāhir ibn Maḥmish, ʿAbd Allāh ibn Yūsuf, Ibn Fanjawayh al-Dīnawarī, Abū al-Ḥasan ibn al-Saqqā, ʿAlī ibn Aḥmad ibn ʿAbdān, and many others, down to Abū Saʿd al-Kanjarudhī and his contemporaries.
He formed a close companionship with Abū Bakr ibn al-Ḥārith the grammarian, stayed constantly with him, and also studied under the ḥadith master Aḥmad ibn ʿAlī ibn Manjawayh.
In jurisprudence he studied with the judge Ṣāʿid ibn Muḥammad.
He authored books, compiled collections, and devoted himself to this discipline.
The ḥadith master ʿAbd al-Ghāfir ibn Ismāʿīl remained in his company, narrated abundantly from him, and mentioned him in his History; however, I have not found that he recorded the date of his death, and it appears that he survived beyond 470 AH.
Wajīh al-Shahhāmī cited a single hadith from him in his Mashyakha, which he related from ʿAbd Allāh ibn Yūsuf ibn Bāmuyah.

As for Abū Saʿd ʿUbayd Allāh ibn ʿAbd Allāh ibn Muḥammad ibn Aḥmad ibn Haskuwayh, he was a shaykh who was still alive after 480 AH. ʿAbd al-Khāliq ibn Zāhir al-Shahhāmī narrated from him, and he in turn transmitted