Is the Hadith that names Abu Bakr as-Siddiq weak? And has Shaykh Al-Albani declared it weak? And does that mean there is no Hadith proving Abu Bakr's title of as-Siddiq?

The appellation of Abu Bakr as "As-Siddiq" (the Truthful/the Verifier) is established and agreed upon. The Prophet, peace and blessings be upon him, described him as such in the Hadith of ascending Uhud. The Imams have unanimously agreed on calling him Siddiq, and Ali ibn Abi Talib mentioned that Allah named him so through the tongue of His Messenger. The reason for this appellation goes back to his prompt verification of the Messenger, peace and blessings be upon him, and his constant adherence to truthfulness. Sheikh Al-Albani supported this with a Hadith from Aisha, which indicates that Abu Bakr verified the Prophet during the Isra and Mi'raj (Night Journey and Ascension), which led to him being named "As-Siddiq."