Ƙarfin sanad ana ɗaukarsa a matsayin sharaɗi wajen karɓar hadisi. Sai dai ya kamata a sani cewa hukunta sanadin wani takamaiman hadisi a matsayin mai rauni ba lallai ne ya nuna cewa hadisin da kansa rauni ne ba, tun da yana iya samun wani isnādi daban, ko kuma wani Imam ya ce ba a karɓe shi ba sai ta wannan hanyar watsawa. Saboda haka, duk wanda ya sami hadisi mai isnādi mara ƙarfi, yafi dacewa ya ce yana da rauni ta wannan isnādi, amma matn ɗin ba a hukunta shi a matsayin mai rauni ba tare da wani sharaɗi ba. Don haka, ƙin isnādin ba ya nufin ƙin hadisin. Duk da haka, akwai hadisai waɗanda ba a tabbatar da su daga fuskar isnādi ba, amma idan aka karɓe su daga mutane zuwa mutane sai su gamsu da ingancinsu, kuma ba sa buƙatar tambayar isnādi. Akwai misalai da yawa game da wannan, kamar hadisin:

The strength of the sanad is considered a condition in accepting a hadīth. However it should be known that judging the sanad of a specific hadith as weak does not necessarily mean the hadīth is weak in itself since it might have another isnād though an imam who might state that it has not been recieved except from this line of transmission. So, whoever finds a hadīth with a weak isnād, it is more inclusive to say that it is weak with this isnād but the text is not judged as weak without qualification. Therefore the rejection of the isnād does not necessitate the rejection of the hadīth. However, there are ahadīth which are not proved from the perspective of the isnād but when it is received from people to people they are satisfied with its authenticity and are in no need to ask for the isnād. There are many examples for this, such as the hadīth:

Ga hadīth:

and the hadīth:

Akwai misalai da yawa irin wannan.

There are many other examples like this.