Reference for Nedarim 15:6

אמר רב יוסף נידוהו בחלום צריך י' בני אדם להתיר לו והוא דתנו הלכתא אבל מתנו ולא תנו לא ואי ליכא דתנו הלכתא אפילו מתנו ולא תנו

R. Giddal said in Rab's name: If one says to his neighbour, 'Let us rise early and study this chapter,' it is his [the former's] duty to rise early, as it is written, And he said unto me, arise, go forth into the plain, and there I will talk with thee. Then I arose and went forth into the plain, and behold, the glory of the Lord stood there.<span class="x" onmousemove="('comment',' Ezek. III, 22, 23. The Lord, having instructed him to go forth, had preceded him. ');">⁶</span>

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