+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
in 99% cases it's the most reliable proof of transferrable fund :)
 
Generally, one should send bank balance certificate with three months' bank statement.
Good luck.
 
You don't need to send statements for 3 months, but your funds should be in that same bank for at least 3 months so that CIC is convinced your funds are for real.
 
Hi Folks,

Depending on where you're applying to - Buffalo has updated its visa-office specific guidelines, specifically regarding proof of funds.

"Provide:

• original letter(s) from your bank(s) and/or other financial institution(s) confirming
the type(s) and current balance(s) of the account(s) you hold

• copies of monthly bank statements showing deposits and withdrawals for the 6
months prior to the submission of you application"

http://www.cic.gc.ca/english/pdf/kits/guides/E37048.pdf