This text comes from The Poetical Works of Robert Burns, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
O rattlin', roarin' Willie,
O, he held to the fair,
An' for to sell his fiddle,
An' buy some other ware;
But parting wi' his fiddle,
The saut tear blin't his ee;
And rattlin', roarin' Willie,
Ye're welcome hame to me!
O Willie, come sell your fiddle,
O sell your fiddle sae fine;
O Willie, come sell your fiddle,
And buy a pint o' wine!
If I should sell my fiddle,
The warl' would think I was mad;
For mony a rantin' day
My fiddle and I hae had.
As I cam by Crochallan,
I cannily keekit ben
Rattlin', roarin' Willie
Was sitting at yon board en',
Sitting at yon board en',
And amang guid companie;
Rattlin', roarin' Willie,
Ye're welcome hame to me!