Ubaidullah bin Sa'eed said:"I heard Abu Usamah say: 'I never saw any man more assiduous in seeking knowledge than 'Abdullah bin Al-Mubarak, not in Ash-Sham, Egypt, Yemen or the Hijaz
Darajoji a cikin tushen
Sahih Isnaad MaqtuAbu Ghuddah
Sahih Isnaad MaqtuAl-Albani
Isnaad SahihZubair Ali Zai
A ƙarƙashin kowace ruwaya akwai fassarar tarin bayanan kansa, an nuna ta yadda take. Ba ta ambaci sunan mai fassara ba, ba a tabbatar da haƙƙoƙinta ba, kuma babu wanda ya kwatanta ta da Larabcin; wasu ruwayoyin ba su da ita. Larabcin shi ne rubutun. Tarin bayanan ba shi da fassarar wannan littafi a wannan harshe, don haka ana nuna Turancin.
Rubutun Larabci, lambobi, sunayen littattafai da darajoji ana nuna su daidai yadda suke a cikin wani buɗaɗɗen tarin bayanai (hadith-api). Sabīl bai tabbatar da daidaitonsa ko haƙƙoƙinsa ba tukuna, kuma ba a fara bitar malamai a kansa ba. Kafin lokacin, ku kwatanta ruwaya da bugaggen littafi kafin ku dogara da ita.