Let me address your question directly: Watching anal sex videos is a major sin, but it does not necessarily constitute kufr (disbelief) as long as you recognize it as wrong, feel guilt, and repent sincerely. Feeling guilty about it is actually a sign of faith (iman), not a sign of leaving Islam.
Let me explain this more clearly:
1. The severity of the act itself:
The Prophet Muhammad ﷺ said: «Allah does not look at a man who approaches a man or a woman anally.» [Sunan At-Tirmidhi 1165 - Authentic hadith]
This shows how severely Allah views this act. The scholars explain that "Allah does not look" means He will not look with mercy and compassion—this is a form of punishment for a major sin.
2. Watching such content involves multiple sins:
The Prophet ﷺ said: «The son of Adam has been destined his share of fornication, which he will inevitably acquire. The eyes fornicate by looking, the ears fornicate by listening, the tongue fornicates by speaking, the hand fornicates by hitting, the foot fornicates by stepping. The heart loves and wishes. The genitals prove or disapprove that.» [Sahih Bukhari & Sahih Muslim - Authentic hadith]
So watching such videos involves the "fornication of the eyes" (looking), and potentially the "fornication of the ears" (listening), and the "fornication of the heart" (desiring). Each of these is a sin in itself.
3. Why this is not kufr:
Kufr (disbelief) means rejecting Allah, His Messenger, or the fundamentals of Islam. Committing a sin—even a major one—while believing it is wrong and feeling guilty about it does not take you out of Islam. The guilt you feel is actually evidence of your faith. The Prophet ﷺ said that faith is what settles in the heart and is proven by deeds, and feeling remorse for sins is a sign of iman.
4. What you should do:
The Prophet ﷺ gave clear guidance for someone who falls into sin: «Avoid this filth, which Allah has prohibited. The one who commits it, let him conceal himself with Allah's concealment and repent to Allah.» [Al-Hakim & Al-Bayhaqi - Authentic hadith]
This means:
- Do not expose your sin to others—keep it between you and Allah
- Repent sincerely to Allah, asking His forgiveness
- Stop watching such content immediately
- Lower your gaze as Allah commands: «Say to the believing men that they should lower their gaze and guard their modesty.» [Quran, An-Noor 24:30]
5. Allah's mercy is vast:
Allah says: «If two men among you are guilty of lewdness, punish them both. If they repent and amend, leave them alone; for Allah is Oft-returning, Most Merciful.» [Quran, An-Nisaa 4:16]
And: «Those who love to see scandal spread among the believers will have a grievous penalty in this life and in the Hereafter.» [Quran, An-Noor 24:19]
Practical advice:
- Repent now with sincere regret, stop the sin, and resolve not to return to it
- Block and delete any sources of such content from your devices
- Replace this habit with beneficial activities—recite Quran, make dhikr, pray on time
- Use your app Al Muslim Plus to read Quran daily and find duas for protection from sins
- Seek help from Allah through prayer and supplication
Remember, dear brother/sister, the fact that you feel guilty shows your heart is alive. Shaytan wants you to despair, but Allah's mercy is greater than your sin. Turn back to Him now, and He will forgive you.