`Hum se Abu Nu'aim ne bayan kiya ‘ kaha hum se Sufyan Sauri ne bayan kiya ‘ un se Ibrahim bin Maisara ne ‘ un se Amr bin Shareed ne aur un se Abu Rafi' Radi Allahu Anhu ne bayan kiya ke Nabi Kareem صلی اللہ علیہ وسلم ne farmaya ”Padosi apne padosi ka zyada haqdar hai.“ Aur baaz logon ne kaha agar kisi shakhs ne ek ghar bees hazar dirham ka khareeda (to shufa' ka haqq saqit karne ke liye) yeh heela karne mein koi qabahat nahi ke malik-e-makan ko nau hazar nau sau nannannway (9999) dirham naqd ada kare ab bees hazar ke takmila mein jo baqi rahe yaani das hazar aur ek dirham is ke badal malik-e-makan ko ek dinar (ashrafi) dede. Is surat mein agar shafee' is makan ko lena chahe ga to is ko bees hazar dirham par lena ho ga warna wo is ghar ko nahi le sakta. Aisi surat mein agar bai' ke baad yeh ghar (bai' ke siwa) aur kisi ka nikla to khareedar bai' se wahi qimat wapas le ga jo us ne di hai yaani nau hazar nau sau nannannway dirham aur ek dinar (bees hazar dirham nahi wapas sakta) kyunke jab wo ghar kisi aur ka nikla to ab wo bai' sarf jo bai' aur mushtari ke beech mein ho gayi thi bilkul baatil ho gayi (to asal) dinar phirna lazim ho ga na ke is ke saman (yaani das hazar aur ek dirham) agar is ghar mein koi aib nikla lekin wo bai' ke siwa kisi aur ki milk nahi nikla to khareedar is ghar ko bai' ko wapas aur bees hazar dirham is se le sakta hai. Imam Bukhari Rahimahullah ne kaha to in logon ne musalmanon ke aapas mein makr o fareb ko jaiz rakkha aur Nabi Kareem صلی اللہ علیہ وسلم ne to farmaya hai ke musalman ki bai' mein jo musalman ke saath ho na aib hona chahiye yaani (bimari) na khabasat na koi aafat.