All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger. We ask Allaah to exalt his mention as well as that of his family and all his companions.
Imaam Ahmed, Abu Daawood and Al-Bayhaqi, may Allaah mercy upon them, and others reported that Um Salamah who was one of the wives of the Prophet said: "I heard the Prophet saying: ''Whoever goes for Hajj or 'Umrah from Al-Aqsa mosque to Al-Haram mosque (in Makkah), his previous and future sins are forgiven, or he will surely be admitted to paradise." A group of the old and contemporary scholars of Hadeeth said that this is a weak Hadeeth.
Al-Bukhari said: 'This Hadeeth is not authentic.' Moreover, Imaam An-Nawawi said: 'Its chain of narrators is not strong'. And Ibn Hazm said that 'It is a weak Hadeeth.' Similarly Al-Albani and Shu'ayb Al-Arna'oot weakened the Hadeeth as well.
As regards the Hadeeth about the prohibition of a slave talking to his Lord to raise his voice over other praying people while reading the Qur'aan and thus disturbing them, it is authentic. Imaam Ahmed reported that 'Abdullaah Ibn 'Umar, may Allaah pleased with him, narrated that the Prophet said: "The praying person is talking to his Lord, The All-Mighty. So, he should know what he is saying, and none of you should make his voice louder than the other one while reading Qur'aan."
Imaam Ahmed, Al-Haakim and Abu Daawood reported that Abu Sa'eed Al-Khudri said: ''The Prophet made I'tikaaf (to reside in the mosque for worship and devotion to Allaah for a limited period) and heard the companions reciting loudly, so he drew the curtain and told them: ''Know that each and everyone of you is talking to his Lord, so you should not disturb or harm each other, and should not make your voice louder than the other while reciting the Qur'aan, or while in prayer.'' This is reported with an authentic chain of narrators.
Allaah knows best.