Our Prophet (saas) tells us to ''drop everything else and join Hazrat Mahdi (as) when he appears''

It is related that our Prophet (saas) said: The Hour will not come until the Qaim [Hazrat Mahdi (as)], my descendant, appears. This will be at a time permitted by Allah.  Those who follow him will be saved, while those who hang back will be perished. O servants of Allah! Fear Allah: WHEN HAZRAT MAHDI (AS) APPEARS, ABANDON EVERYTHING AND RUN TO HIM BY ALL POSSIBLE MEANS.  Because he ıs the calıph of Allah [MuslIms’ spIrItual leader]  AND MY HEIR. (Bihar al-Anwar, Vol. 51, p. 65; Al-Hurr al-Amili, Ithbat al-Hudat, Vol. 6, p. 382)