四部律并論要用抄 2.54

2.54

不受食戒　僧祇云。濁水應受。性黃聽不受　五分云。鹹不須。著鹽應受。廣如上說。

The precept on food not received: The Mahāsāṃghika-vinaya states: Turbid water should be accepted; if its nature is naturally yellow, it is permitted to take it without receiving it. The Mahīśāsaka-vinaya states: If it is naturally salty, it need not [be received]; if salt has been added, it must be received. It is explained in detail as above.