Abdullah bin Abbas reported,

The people of Yemen used to perform the pilgrimage without taking provisions, saying, "We are those who rely on Allah." When they arrived in Mecca, they would beg from the people. So Allah the Exalted revealed, "And take provisions, but indeed, the best provision is righteousness" [Baqarah 2:197].

Azami 4748

Sahih

عن ابن عباس، قال

كان أهل اليمن يحجون ولا يتزودون، ويقولون: نحن المتوكلون، فإذا قدموا مكة سألوا الناس، فأنزل الله تعالى: {وتزودوا فإن خير الزاد التقوى}.

الأعظمي 4748صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Hajj
Chapter
Obligation of Hajj, its virtue, and its conditions
Section
Taking provisions for Hajj and Umrah
Numbering
Jami al-Kamil 4748 (2nd edition)
Azami 4748