Only a Person who destroys himself will be a Loser

عن ابن عباس رضي الله عنهما أن رسول الله صلى الله عليه و سلم قال فيما يروي عن ربه عز و جل إن الله كتب الحسنات والسيئات ثم بين ذلك فمن هم بحسنة فلم يعملها كتبها الله عنده حسنة كاملة فإن هم بها فعملها كتبها الله عنده عشر حسنات إلى سبعمائة ضعف إلى أضعاف كثيرة ومن هم بسيئة فلم يعملها كتبها الله عنده حسنة كاملة وإن هو هم بها فعملها كتبها الله سيئة واحدة زاد في رواية أو محاها ولا يهلك على الله إلا هالك رواه البخاري ومسلم (الترغيب و الترهيب 1/67)

Hadhrat ibn Abbaas (Radhiallahu Anhuma) reports that Rasulullah (Sallallahu Alaihi Wasallam) reported from Allah Ta’ala: “Indeed Allah Ta’ala created good and bad, and thereafter He explained it clearly (to the creation, so that they do good (virtue) and abstain from evil (sin)). So whoever intends a good action but did not fulfil it, Allah Ta’ala will write for him one good deed. If he intended it, and thereafter fulfilled it, the reward will be multiplied ten fold up to seven hundred fold and even more (based on his ikhlaas). Whoever intends committing an evil deed but did not do it, Allah Ta’ala writes down one good deed for him. If he intended the evil action and committed it, then Allah Ta’ala writes down one evil deed against his name (and in one narration it is mentioned) or Allah Ta’ala wipes it out, and only a person who destroys himself (through carrying out evil deeds) will be a loser in the court of Allah Ta’ala.”