ahadeeth bin Jandub reported Muhammad (ﷺ) as saying. The call of Bilal (RA) may not mislead any one of you (and he may, under the wrong impression gathered from it), refrain from taking meal before the commencement of the fast (for the streaks) of this whiteness (which are vertical) indicate the false dawn and the true dawn with which the fast commences is that when the streaks of light are spread.

ahadeeth bin Jundub reported Allah's Messenger (ﷺ) as saying: The Adhan of Bilal (RA) should not mislead you nor the whiteness (of the pillar) of dawn, for it is not the whiteness of the true dawn, but that of the false dawn which is vertical like a pillar and you can eat food till the streaks of whiteness spread like it.

ahadeeth bin Jundub (RA) reported Allah's Messenger (ﷺ) as saying: The Adhan of Bilal (RA) may not mislead you with regard to your food at the commencement of the fast, nor the vertical (streaks) of whiteness in the horizon (for it is an indication of false dawn). You should stop eating (food) till (the whiteness) spreads like it. Hammad narrated it and with the gesture of his hand he explained, the horizontal position (of the streaks of light).

ahadeeth bin Jundub addressed and narrated from the Apostle of Allah (ﷺ) having said (these words): Neither the call of Bilal (RA) should mislead you nor this whiteness (of false dawn) till (the true) dawn appears (or he said) till the dawn breaks.

A hadith like this has been narrated on the authority of ahadeeth bin Jundub.