It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings of Allah be upon him) said: "The curse of Allah is upon the person who misleads a blind man from the right path."
Hadith Referenceالادب المفرد / كتاب / 892
Hadith Gradingالألبانی:حسن صحيح
Hadith Takhrij«حسن صحيح : أخرجه أحمد : 2913 و عبد بن حميد : 589 و ابن حبان : 4417 و البيهقي فى الشعب : 4988 - انظر الصحيحة : 3462»
Explanation & Benefits
Shaykh Maulana Usman Muneeb
Benefits and Issues: ➊ It is the habit of many people to trouble those who are excused (ma‘dhur), and they consider it a source of amusement. According to the Shari‘ah, doing so is a grave sin. Guiding someone to the correct path is a cause for entering Paradise, so to misguide someone—especially a blind person—is a cause for Allah’s curse and being distanced from His mercy, and it is a major sin (kabirah).
➋ From this, it is understood that breaking or damaging signboards that are installed for people’s guidance is a sinful act. Often, this leads to very serious accidents, and the burden of these also falls upon those who damage these symbolic boards.
Source: Fadlullah al-Ahad: Urdu Commentary on al-Adab al-Mufrad, Page: 892