Narrated Al-Ju'aid bin `Abdur-Rahman:As-Sa'ib bin Yazid said, "The Sa' at the time of the Prophet (ﷺ) was equal to one Mudd plus one-third of a Mudd of your time, and then it was increased in the time of Caliph `Umar bin `Abdul `Aziz
Tushen bai rubuta wata daraja ga wannan ruwaya ba.
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.