Hadith

Q: Narrated by 'Abdullah bin Mas'ood (Radiyallahu Anhu) on the authority of the Prophet (Sallallahu Alayhi Wasallam) (On the Day of Judgement) a man will come holding the hand of another man and say: O Lord! It is he who killed me. Allah will say: Why did you kill him? He will say: I killed him so that glory may be established for you. Allah will say: Indeed it. Then another will come taking hold of another fellow's hand and say: It is he who killed me. Allah will ask him: Why did you kill him? He will say: I killed him so that glory may be established for so-and-so person. Allah will say: Indeed glory is not his. (So the killer will bear the sin). 

Please explain!

Q: Is it true that a haajis duas are accepted for 40 days?

Q: It is stated in the Ahadeeth that if one performs his Salaah with Jama'ah then he receives up to 27 times more reward than one who doesn’t perform with jama'ah.  It is also mention in ahadeeth that one who perform salaah having used Miswaak prior to performing wudhu, he would receive 70/72 time more reward than one who performs salaah without using miswaak. 

Therefore, do the relevant ahadeeth suggest that one who performs Salaah having used Miswaak, will receive greater reward than that person who performed his Salaah with Jama'ah (not using miswaak)?

I have had this confusion in my mind for a while.  Please enlighten through your superior knowledge.

Q: Is the following Hadith sahih and can it be read in the Jummah Khutbah?

حديث عليكم بسنتي وسنة الخلفاء الراشدين من بعدي

Q: What is the reference for the following Hadith and can we tell people the virtue contained in it?

The Messenger of Allah  (Sallallahu Alayhi Wasallam) has said ‘whosoever recites ten duroods upon me in the morning and ten duroods in the evening, my intercession will definitely reach him on Day of Judgement".

Could you explain the reference of this Hadith and whether it is authentic?

Q: Is shab-e-qadr in the last odd days of Ramadhaan (last ashara) or in any night of Ramadhaan?

Q: Where does this hadith appear: "In the manner a person leads his life that is how he will pass away and leave this world, and the manner he passes away he will be resurrected on the day of Qiyaamah"?

Q: Is the following correct and virtue mentioned in Hadith: If you recite Ayatul Kursi after wudhu Allah will give you the reward of 40 years of worship?

Q: Is the following Hadith saheeh? Nabi (Sallallahu Alayhi Wasallam) said "If a young man honours an elderly on account of his age, Allah appoints someone to honour him in his old age." (At-Tirmidhi)

Q: What does the following hadith mean and is the hadith sahih?

عن حذيفة أظنه عن رسول الله -صلى الله عليه وسلم- قال « من تفل تجاه القبلة جاء يوم القيامة تفله بين عينيه ومن أكل من هذه البقلة الخبيثة فلا يقربن مسجدنا ». ثلاثا. (أبو داود #3826)