The origins of these two “series” were a succession of articles that the Shaykh used to publish in the journal al-Tamaddun al-Islāmī. He began with the articles entitled “Weak and Fabricated Hadiths and Their Harmful Impact on the Ummah,” the first of which he wrote on 26/8/1374 AH. After five years—that is, in 1379 AH—the Shaykh started writing the articles “Authentic Hadiths” (1).
The two series were later issued in substantial volumes, each one containing 500 hadiths that the Shaykh graded. In the same volumes he also cited many other hadiths and reports as evidence or for discussion, together with numerous theological, hadith-based, and jurisprudential studies and a wealth of benefits.
Seven volumes from each of the two series have been printed (2), meaning that each set comprises 3,500 hadiths. The eighth volume of al-Ṣaḥīḥah was left unfinished and is the last material the Shaykh wrote for that series. As for al-Ḍaʿīfah, he reached volume seventeen (3); therefore ten further volumes remain unpublished—Allah knows best.
( … ) “Silsilat Tasdīd al-Iṣābah ilā man Zaʿama Naṣrata al-Khulafāʾ al-Rāshidīn wa-l-Ṣaḥābah” = “Tasdīd al-Iṣābah.”
See Shaykh Muḥammad ʿĪd al-ʿAbbāsī’s introduction to “Al-Tawassul: Its Kinds and Rulings” (p. 6).
“Sunan Ibn Mājah,” [annotations].
This is distinct from the forthcoming “Ṣaḥīḥ Sunan Ibn Mājah” and “Weak Sunan Ibn Mājah.”
“Al-Sunnah,” by Ibn Abī ʿĀṣim, [verification] (printed). He verified three-quarters of the book and entitled his work “Ẓilāl al-Jannah fī Takhrīj al-Sunnah,” which will be mentioned later.