Samura bin Jundab reported,

I heard Muhammad ﷺ say, "Do not let any of you be deceived by Bilal's call from suhoor, nor by this whiteness, until it spreads across the horizon."

Muslim 2544

Sahih

حدثنا شيبان بن فروخ حدثنا عبد الوارث عن عبد الله بن سوادة القشيري حدثني والدي أنه سمع

سمرة بن جندب يقول

ا سمعت محمدا ﷺ يقول لا يغرن أحدكم نداء بلال من السحور ولا هذا البياض حتى يستطير

مسلم 2544صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Fasting
Chapter
Clarification that entering into fasting occurs at the rising of Fajr, and that one may eat and otherwise until Fajr rises, and clarification of the description of Fajr to which rulings are attached regarding entering into fasting, the beginning of the time for the morning prayer, and other matters
Numbering
Darussalam 2544
Muslim 2544