Sayyiduna Imran bin Husayn (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "It is enough sin for a man that people point at him with their fingers." It was said: "O Messenger of Allah! Even if it is something good (for which he is being pointed at)?" The Prophet (peace and blessings be upon him) said: "Even if it is something good, it (that is, being pointed at) will be bad for that person, except for the one on whom Allah Almighty has mercy; and if it is something bad (for which he is being pointed at), then it will certainly be bad for him."
Al-Tabarani recorded it; its chain contains a narrator, Kathir bin Marwan, who is da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الزهد / 18132