An inquiry into "communication" and "submission" to the Imam Mhadi(as) in the Qur'an and Hadith

"Relationship" with Imam Mahdi (a) and "Greeting" are two pillars in the subject of Mahdaviat. In this research, the meaning and application of the sentence "Rabeto" from verse 200 of Surah Al-Baqarah and the sentence "Baqiyatullah" from verse 86 of Surah Hood are explained by referring to interpretive hadiths in a descriptive-analytical method. The issue of research is how to Relationship with the Guardian of the Age (PBUH) through "Greeting" in the age of absence and presence. The purpose of this research is traditional commentary of "Rabeto" and "Baqiyatullah" in relation to each other. Till now, no such Qur'anic and traditional research has been conducted in connection with these two important issues of components of the principle of Islamic Mahdaviat. The discovery of the meaning of "Rabeto" and "the rest of God" in the Qur'an and how to "Greeting "to Imam Mahdi (as) by defining the Ahl al-Bayt (as) is the Innovation of this research. By examining the lexicon and verse studies with the help of tradition, it became clear that the meaning of "Rabeto" in Surah Al-Imran today is the connection and Relationship with Imam Montazer (as) and the meaning of "the rest of God" in Surah Hood is also Imam Mahdi (as). And the text which narrated for greeting to Qaeme Ale-Muhammad (PBUH) in both historical periods, in the era of absence and in the era of Appearance, is "Peace be upon you oh the rest of God on earth". It is worth mentioning that there are other greetings to relationship with Imam Mahdi (as) that should be searched in related sources.