What is the authenticity of the hadith: "Whoever prays Fajr (al-Ghada'ah) will be in the protection (dhimmah) of Allah until the evening"? And is it to be understood from this that the worshipper will only be in the protection of Allah until the evening?

Whoever prays Fajr in congregation is under the protection, security, and guarantee of Allah. This is a severe warning to anyone who harasses those who pray. And whoever aggresses against someone who is under Allah's protection, Allah will admit him into the Fire. This hadith has been narrated by a group of companions with absolute chains of transmission. Some narrations came restricted with "the evening" or "his day" or "until morning"; however, those narrations are weak and not established, yet the meaning necessitates them. This covenant (of protection) is renewed with the renewal of the Fajr prayer every day, and it is a pledge upon the believer to preserve it and not break it with a crime that expels him from Allah's proximity.