Hadhrat Jaabir (Radhiallahu Anhu) reports that Rasulullah (Sallallahu Alaihi Wasallam) said: “May Allah Ta’ala show mercy to the one who is kind when he sells, kind when he buys, and kind when he demands payment.
Hadhrat Abu Hurayrah (Radhiallahu Anhu) reports that Rasulullah (Sallallahu Alaihi Wasallam) said: “The one who cancels the sale of a Muslim upon his request, Allah Ta’ala will remove his difficulties on the day of Qiyaamah.”
عن أنسٍ رضي الله عنه قال كَانَ النَّبِيُّ صَلَّى اللهُ عَلَيهِ وَ سَلَّمَ إذَا دَخَلَ رَجَبٌ قَالَ اَللّهُمَّ بَارِكْ لَنَا فِيْ رَجَبٍ وَّشَعْبَانَ وَبَلِّغْنَا رَمَضَان (رواه البزار والطبراني فى الأوسط)
Hadhrat Anas (Radhiallahu Anhu) reports that whenever the month of Rajab would arrive, Rasulullah (Sallallahu Alaihi Wasallam) would make the following dua, “O Allah! Bless us in the months of Rajab and Sha’baan and take us forth to the month of Ramadhaan.”
عَنْ أَبِي ذَرٍّ رضي الله عنه عَنِ النَّبِيِّ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ قَالَ ثَلَاثَةٌ لَا يُكَلِّمُهُمُ اللهُ يَوْمَ الْقِيَامَةِ، وَلَا يَنْظُرُ إِلَيْهِمْ وَلَا يُزَكِّيهِمْ وَلَهُمْ عَذَابٌ أَلِيمٌ قَالَ: فَقَرَأَهَا رَسُولُ اللهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ ثَلَاثَ مِرَارًا قَالَ أَبُو ذَرٍّ: خَابُوا وَخَسِرُوا، مَنْ هُمْ يَا رَسُولَ اللهِ؟ قَالَ: الْمُسْبِلُ، وَالْمَنَّانُ، وَالْمُنَفِّقُ سِلْعَتَهُ بِالْحَلِفِ الْكَاذِبِ (المسلم 1/71)
Hadhrat Abu Zar (Radhiallahu Anhu) reports that Nabi (Sallallahu Alaihi Wasallam) said: “Three types of people Allah Ta’ala will not speak to on the day of Qiyaamah, nor will he look at them with the sight of mercy nor purify and cleanse them of their sins, and a severe punishment awaits them.” Hadrat Abu Zar (Radhiallahu Anhu) exclaimed: “Certainly such people are great losers and are doomed. O Rasulullah (Sallallahu Alaihi Wasallam), inform us who are these people?” Nabi (Sallallahu Alaihi Wasallam) replied: “The one who lets his garment flow beneath his ankles, the one who (after doing a favour to people), reminds them of his favours, and the one who takes false oaths when marketing and advertising his merchandise (i.e. he lies about the quality of the merchandise etc. to people with false oaths).
Hadhrat Hakeem ibn Hizaam (Radhiallahu Anhu) reports that Rasulullah (Sallallahu Alaihi Wasallam) said: “If the purchaser and seller deal with honesty and disclose the faults of the merchandise, Allah Ta’ala will grant them barkat (blessing) in their business transaction. However, if they transact with dishonesty, thereby concealing the faults of the merchandise and speaking lies to each other, perhaps they eould earn a little profit through the transaction, certainly the blessing of the transaction will be lost.