Zunubai suna jawo wulakanci da kaskanci ga masu aikata su. Duk daraja tana cikin biyayya ga Allah ~; Ya ~ ya ce: (Duk wanda ke son daraja da girma, to ga Allah ne dukkan daraja da girma suke) 1, watau ya kamata mutum ya nemi daraja da girma ta hanyar biyayya ga Allah ~. Daya daga cikin addu'o'in wani malami na da shi ne: "Ya Allah! Ka girmama ni da biyayyata a gare Ka, amma kada Ka wulakanta ni da sabona a gare Ka." Al-Hasan Al-Basri ya ce: "Kaskancin zunubi ba ya barin masu zunubi, domin Allah ~ ya nufa cewa zai wulakanta duk wanda ya sabe Shi." Zunubi yana lalata hankali. Zunubi yana lalata tunani; domin hankali yana da basirarsa, kuma zunubi yakan kashe wannan basira babu makawa. Wani malami na da ya ce: "Babu wanda ke sabawa Allah ~ sai hankalinsa ya yi nisa (ko ya kasa); kuma wannan a bayyane yake, domin da hankalinsa yana wurin, da zai hana shi aikata zunubi, da yana cikin Kariyar Allah ~, Wanda ya san dukkan yanayinsa sosai." Tarin zunubai yana kaiwa ga rufe zuciya. Idan mutum ya ci gaba da aikata zunubi da laifuffuka ba tare da tsayawa ba, zuciyarsa takan rufu, sai ya zama mara kula da sakaci, kamar yadda wani malami ya ruwaito a tafsirinsa na Ayar: (A'a, amma a kan zukatansu akwai Ran (rufin zunubai da munanan ayyuka) da suke tsirarwa) 2, ya ce: "Zunubi ne bayan zunubi."

Sins bring down dishonour and humiliation on sinners. All dignity is in obeying Allah ~; He ~ said: (Whosoever desires honour and glory, then to Allah belong all honour and glory) 1 i.e. one should seek it honour and glory by being obedient to Allah~- One supplication of a scholar of the past was: "O Allah! Honour me with my obedience to You, but do not disgrace me with my disobedience to You." Al-Hasan Al-Basri said: "The disgrace of a sin never leaves sinners, for Allah ~ has willed that He will disgrace whoever disobeys Him." Sins corrupts one's intellect Sins corrupt the mind; for the mind has its insight, and a sin inevitably extinguishes that insight. One scholar of the past has said: "No one disobeys Allah ~ unless their mind is absent (or deficient); and this is evident, for if one's mind were present, to prevent him from committing a sin, one would be under the Protection of Allah ~ ' Who is fully aware of all his conditions." The accumulation of sins leads to the sealing of the heart When a person indulges incessantly in sin and wrongdoings, his/her heart becomes sealed up, and he/she would be careless and thoughtless, as reported by a scholar in his interpretation of the Verse: (Nay, but on their hearts is the Raan ( covering of sins and evil deeds) which they used to earn) , he said: "It is one sin after another sin." 2

Al-Hasan Al-Basri ya ce: "Zunubi ɗaya bayan wani zunubin, har zuciya ta makance." Wasu kuma sun ce: "Idan laifuffuka da ayyukan sabo na masu zunubi suka ƙaru matuƙa, za su kewaye zukatansu." Gaskiyar wannan cuta ita ce zuciya takan yi tsatsa saboda zunubi; don haka idan zunubai suka yawaita, tsatsar takan ƙaru har ta kewaye dukkan zuciya, har ta mamaye ta, ta zama kamar hatimi a kanta.

Al-Hasan Al-Basri said: "It is one sin on top of another sin, until the heart becomes blind." Others have said: "When the wrongdoings and misdeeds of sinners become vastly increased, they will surround their hearts." The reality of this ailment is that the heart becomes rusty because of a sin; so when sins increase, the rust increases until it surrounds all the heart, until it dominates it, becoming a seal over it.