✅Answer: In the narrations and supplications related to our master, Baqiyatullah (AS), such a title or name has not been observed. Therefore, addressing Imam Mahdi with this title has no basis in narrations.

It seems that a misunderstanding or misconception has led to this attribution.

Consider the following three narrations:

بِإِسْنَادِهِ عَنْ عَلِیِّ بْنِ أَبِی حَمْزَةَ عَنْ أَبِی بَصِیرٍ عَنْ أَبِی عَبْدِ اللَّهِ ع قَالَ إِذَا ضَلَلْتَ عَنِ الطَّرِیقِ فَنَادِ یَا صَالِحُ أَوْ یَا أَبَا صَالِحٍ أَرْشِدُونَا إِلَی الطَّرِیقِ یَرْحَمْکُمُ اللَّهُ

📚Man La Yahduruhu Al-Faqih, Vol. 2, p. 298

Translation: Imam Sadiq (AS) said: When you lose your way, call out: 'O Salih' or 'O Abu Salih,' guide us to the path, may Allah have mercy on you.

قَالَ وَ رُوِیَ أَنَّ الْبَرَّ مُوَکَّلٌ بِهِ صَالِحٌ وَ الْبَحْرَ مُوَکَّلٌ بِهِ حَمْزَةُ

📚Man La Yahduruhu Al-Faqih, Vol. 2, p. 298

Translation: Sheikh al-Saduq said: It has been narrated that the land is entrusted to 'Salih' and the sea to 'Hamza.'

وَ فِی الْخِصَالِ بِإِسْنَادِهِ عَنْ عَلِیٍّ فِی حَدِیثِ الْأَرْبَعِمِائَةِ قَالَ وَ مَنْ ضَلَّ مِنْکُمْ فِی سَفَرٍ أَوْ خَافَ عَلَی نَفْسِهِ فَلْیُنَادِ یَا صَالِحُ أَغِثْنِی فَإِنَّ فِی إِخْوَانِکُمْ مِنَ الْجِنِّ جِنِّیّاً یُسَمَّی صَالِحاً یَسِیحُ فِی الْبِلَادِ لِمَکَانِکُمْ مُحْتَسِباً نَفْسَهُ لَکُمْ فَإِذَا سَمِعَ الصَّوْتَ أَجَابَ وَ أَرْشَدَ الضَّالَّ مِنْکُمْ وَ حَبَسَ دَابَّتَهُ

📚Al-Khisal, Vol. 2, p. 618

Translation: Amir al-Mu’minin (AS) said in his collection of four hundred hadiths: If any of you gets lost while traveling or fears for his life, let him call out: 'O Salih, help me!' For among your brethren from the jinn, there is a jinn named 'Salih' who roams the lands to serve you. If he hears your call, he will respond, guide those who are lost, and stop a runaway mount.

Explanation: Some may have mistakenly assumed that calling this name and experiencing the presence of this jinn for guidance means he is the Imam. However, naming or attributing titles to the Imams (AS) should be based on established narrations and supplications to avoid falling into error.