Awf bin Malik reported,

We were with the Messenger of Allah ﷺ, nine or eight or seven of us, when he said, "Will you not pledge allegiance to the Messenger of Allah?"We had only recently given our pledge, so we said, "We have already pledged to you, Messenger of Allah."Then he said again, "Will you not pledge allegiance to the Messenger of Allah?"We said, "We have already pledged to you, Messenger of Allah."Then he said a third time, "Will you not pledge allegiance to the Messenger of Allah?"So we extended our hands and said, "We have pledged to you, Messenger of Allah, but on what shall we pledge?"He said, "That you worship Allah and associate nothing with Him, that you observe the five prayers, that you obey," and he whispered a quiet word, "and that you ask people for nothing."I later saw that if the whip of one of those men fell from his hand, he would not ask anyone to hand it to him.

عن عوف بن مالك الأشجعي قال

كنا عند رسول الله ﷺ تسعة أو ثمانية أو سبعة فقال: ألا تبايعون رسول الله؟ وكنا حديث عهد ببيعة فقلنا قد بايعناك يا رسول الله ثم قال: ألا تبايعون رسول الله؟ فقلنا: قد بايعناك يا رسول الله ثم قال: ألا تبايعون رسول الله؟ قال: فبسطنا أيدينا وقلنا: قد بايعناك يا رسول الله فعلام نبايعك؟ قال: على أن تعبدوا الله، ولا تشركوا به شيئا، والصلوات الخمس، وتطيعوا، وأسر كلمة خفية- ولا تسألوا الناس شيئا فلقد رأيت بعض أولئك النفر يسقط سوط أحدهم فما يسأل أحدا يناوله إياه.