Sayyiduna Abdullah bin Amr (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Whoever looks at a Muslim in a way that frightens him, and does so unjustly, Allah Almighty will put that person in fear on the Day of Resurrection."
Al-Tabarani recorded it from his teacher Ahmad bin Abd al-Rahman bin Iqal, whom Abu Arubah declared da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الحدود والديات / 10524