We were with Messenger of Allah (May peace be upon him), seven or eight or nine. He said : Do you take the oath of allegiance to the Messenger of Allah (May peace be upon him), and we shortly took the oath of allegiance. We said: we have already taken the oath of allegiance to you. He repeated the same words three times. We then stretched our hands and took the oath of allegiance to him. A man (or us) said : We took the oath of allegiance to you; now on what should we take the oath of allegiance, Messenger of Allah ? He replied: That you should worship Allah, do not associate anything with Him, offer five times prayer, listen and obey. He uttered a word quietly : And do not beg from the people. When the whip fell on the ground, none of that group asked anyone to pick up the whip for him. Abu Dawud said : The version of Hisham was not narrated by anyone except Sa'id.  

كُنَّا عِنْدَ رَسُولِ اللَّهِ ﷺ سَبْعَةً أَوْ ثَمَانِيَةً أَوْ تِسْعَةً فَقَالَ أَلاَ تُبَايِعُونَ رَسُولَ اللَّهِ ﷺ وَكُنَّا حَدِيثَ عَهْدٍ بِبَيْعَةٍ قُلْنَا قَدْ بَايَعْنَاكَ حَتَّى قَالَهَا ثَلاَثًا فَبَسَطْنَا أَيْدِيَنَا فَبَايَعْنَاهُ فَقَالَ قَائِلٌ يَا رَسُولَ اللَّهِ إِنَّا قَدْ بَايَعْنَاكَ فَعَلاَمَ نُبَايِعُكَ قَالَ أَنْ تَعْبُدُوا اللَّهَ وَلاَ تُشْرِكُوا بِهِ شَيْئًا وَتُصَلُّوا الصَّلَوَاتِ الْخَمْسَ وَتَسْمَعُوا وَتُطِيعُوا وَأَسَرَّ كَلِمَةً خُفْيَةً قَالَ وَلاَ تَسْأَلُوا النَّاسَ شَيْئًا قَالَ فَلَقَدْ كَانَ بَعْضُ أُولَئِكَ النَّفَرِ يَسْقُطُ سَوْطُهُ فَمَا يَسْأَلُ أَحَدًا أَنْ يُنَاوِلَهُ إِيَّاهُ  

If anyone guarantees me that he will not beg from people, I will guarantee him Paradise. Thawban said : I (will not beg). He never asked anyone for anything.  

وَكَانَ ثَوْبَانُ مَوْلَى رَسُولِ اللَّهِ ﷺ قَالَ قَالَ رَسُولُ اللَّهِ ﷺ مَنْ تَكَفَّلَ لِي أَنْ لاَ يَسْأَلَ النَّاسَ شَيْئًا وَأَتَكَفَّلَ لَهُ بِالْجَنَّةِ فَقَالَ ثَوْبَانُ أَنَا فَكَانَ لاَ يَسْأَلُ أَحَدًا شَيْئًا