Raising one’s voice in Masjid Nabawi is prohibited
Calling out to someone in a loud voice in Masjid Nabawi is strictly prohibited and against the etiquette of Masjid Nabawi. This is the place where the blessed grave of the Holy Prophet (Sallallahu alaihi wa sallam) is present. We should present ourselves here as models of respect and reverence. This is that court where raising one’s voice has been prohibited and the punishment for raising one’s voice is that all the good deeds and worship will be wiped out and the person will not even be aware of it. Allah says about the manner of presenting oneself before the Holy Prophet (Sallallahu alaihi wa sallam):
O ye who believe! Raise not your voices above the voice of the Prophet, nor speak aloud to him in talk, as ye may speak aloud to one another lest your deeds become vain and ye perceive not. Surah Hujuraat (49:2)
Even after the passing away of the Holy Prophet (Sallallahu alaihi wa sallam) into the presence of Allah, the command remains the same that voices should not be raised there.
There is a Hadith in Sahih Bukhari:
Translation of Hadith: It is narrated on the authority of Hadhrat Saib Bin Yazid (May Allah be well pleased with him), he said: I was standing in Masjid Nabawi, when someone threw a pebble at me. I turned and saw it was Hadhrat Umar Farooq (May Allah be well pleased with him). He gestured: Bring these 2 men to me. I took both of them and went to Hadhrat Umar (May Allah be well pleased with him). Hadhrat Umar (May Allah be well pleased with him) asked them: From which tribe are you? Or he asked: Which place do you come from? Both of them said: We are the natives of Taif. Hadhrat Umar (May Allah be well pleased with him) said: If you had lived in this city, I would have punished you. You dare to raise your voices in the Masjid of the Holy Prophet (Sallallahu alaihi wa sallam)? (Sahih Bukhari, Kitab Us Salaat)
Hadhrat Shaykh Ul Islam Imam Muhammad Anwarullah Farooqui (May Allah shower His Mercy on him), the founder of Jamia Nizamia writes in the explanation of this Hadith:
Translation: This shows that nobody could raise their voices in Masjid Nabawi and the one who did would be considered liable for punishment. Even though Hadhrat Saib (May Allah be well pleased with him) was not far, out of this respect Hadhrat Umar (May Allah be well pleased with him) did not call out to him, but threw a pebble at him. All this respect was because of the fact that the Holy Prophet (Sallallahu alaihi wa sallam) is present there in His eternal life, because if this was for any Masjid, then there is no reason for saying “in the Masjid of the Holy Prophet (Sallallahu alaihi wa sallam)”.